Free 2-Day Shipping on Orders Over $50* – Limited Time Only

Attack high-altitude tours with the lightness and agility of the Dynafit TLT 5 Mountain TF-X Alpine Touring Boot. Mountain-bred details like a rockered sole for hiking and crampon compatibility make this a prime choice for fast ski mountaineering. This boot rocks a thermoformable liner for unparalleled comfort on the descent and a Pebax cuff that maintains a reliable flex in the deep freeze of winter or warm spring shredding. Transition from ski to walk and tackle your next technical ascent with sure-footed speed.

  • The TF-X liner comfortably supports the foot and uses a forefoot flex zone to integrate with the TLT5's 5mm of ACTI-Flex last flexibility for less foot fatigue during marathon skin sessions
  • Claw Outsole uses a durable, rubberized tread that provides ample traction in mixed terrain and plays nicely with crampons
  • Downhill Booster system uses one fixed and one removable tongue that swaps out for uphill hikes, and slides in easily for powerful downhill performance
  • At the catches, the Magnesium Ultra-Lock System locks over the cuff cable so the cuff buckle can be both opened fully and simultaneously secured for easier switching from ski to walk mode
  • Close the Ultra-Lock cuff buckle and an insert on the buckle slides into hole in the rear cuff, locking the two together to create a singular, stiff structure
  • Reviews
  • Q & A

What do you think about this product?

Have questions about this product?

Remarkable Randonne? Boots

    These seeming feather-light boots far exceeded my expectations. They are very nearly as powerful as down-hill boots and, paired with V�lkl Nunataq skis and Dynafit Radical bindings, let me keep up with skiers that left me in the dust when I was climbing on my BD Crossbows and Scarpa Lasers. They truly make me feel young again! Fit is, of course, dependent on foot shape. Apart from a hot spot caused by the base of one of the tongues that I have yet to solve, these are very comfortable and precise with my Lange-shaped foot.

    a quick critique

    • Familiarity:I returned this product before using it

    this boot is narrow and not for a wide or full sized foot. I bought my size and it was too narrow for my foot, so returned/exchanged the boot for a Scarpa Rush. I skiied on the Rush's today and love them. They fit my wider foot right out of the box, and they are relatively light also. Fitted the same size in both boots.

    Best Boots Ever?

    • Familiarity:I've used it several times

    After years skiing assorted four-buckle boots from Dynafit’s Zzero series of “all around” AT boots I finally got my hands on a pair of their ultralight two-buckle TLT5 boots. I’ve skied 8 days in these boots in conditions ranging from deep pow to heavy crud and have also gotten to spin some groomers at Grand Targhee Resort in these boots. I’ve skinned ~9000 vert in these boots and have stomped up a few steeps in them as well. Here is my initial review. I will be reviewing these boots at the end of the season regarding their overall durability as well.



    The TLT5 Mountain backcountry ski boot is ultralight and tours amazingly. It is also great for the descent. There are lighter boots out there but this boot is both affordable and light weight. I’ll be riding in these boots every day this winter. I wish I’d gotten my hands on a pair when they first came on the market a few years ago. Peace.

    Best Boots Ever?

    Buy them if you can!!!

      These boots are as good as it gets. They have a removable plastic tongue for making the skin up easier, and you can pop it right in if you need the extra downhill support. I personally don't ever need the tongue, so its an instant transition at the top. They also climb ice incredibly well. If you can find a pair of these in your size, do yourself a favor and buy them, they will be the last boots you will ever need to buy.

      Best Fruitboot for Splitboarding

        These things are amazing. If you splitboard stop wasting time with 1980's strap bindings and softboots. Get some dynafit toe pieces and these boots. Touring function is unreal. File out the "ski mode" hole for increased forward flex. After that mod these things are more flexy than my previous softboots. They surf pow like a dream and can handle the gnarliest ascents thanks to their short sole length and crampon compatibility.

        Hey Corey,

        Nope that is the only mod I have done. Much less fiddling than I did with my old scarpa boots. I would suggest filing out the whole a few mm's and go riding, if needed file out a little more to desired flex. I don't use the skiing tongue.

        So light

          So very light. Uphill mobility is a dream, and tongue insert allows downhill power, drives big skis. Frontpoints like a high top Koflach, but still best of all ski boots. Maybe a bit colder than other boots, but fine to minus 10 this year (seems like the "cold boot" thread is a bit hyped). Ankle and heel very very happy now.

          TLT5 ski great but brrrr

            they climb like my good hiking boots and ski-descend like a good alpine boot. my only trouble with them is cold feet. thinking of getting them refitted or "recooked" to allow thicker socks-more room though part of the reason they ski so well is that the fit is bomber-my heel does not move unless the ski move with it.

            Accepts and Delivers

              Unbelievable boot. Now, down to business. I ski pretty hard and I do so on 188cm Coombacks. So, I demand a lot from the boot.

              In the back of my mind I've asked myself, "Should I have spent a little more on the TLT 5 Performance? Should I have gone for the stiffer Titan?" The answer every time is no. At 1$ per gram of weight savings, the Performance isn't worth it, the difference in stiffness is pretty hard to differentiate, and the flex in the pebax cuff is smoother than its carbon counterpart. On the descent, these boots have accepted my demands, granted them, nothing more, nothing less. Deep powder days, pillow lines, cliffs, steep exposed descents, couloirs, carving large fast turns on spring corn, they tackle everything. I don't want to be unrealistic, if you yourself want to tackle big and fast ski descent you can't rely entirely on the boot, the boot is super stiff for it's weight but you need to be strong on your skis to handle what the designers of this boot would call "above and beyond". Of course a stiffer boot like the Titan will provide the ultimate performance on the downhill, but on the uphill, these undoubtedly win everything.

              Even now with the Titan Ultralight, these boots remain 1lb lighter per boot. Not only are these astonishingly light for their strength, but the range of movement is... well, it's amazing. I usually always leave the tongues in to avoid hassle but even then it allows a super long stride. These boots are really versatile in that regard, leave the tongue at home for a flat long distance traverse over an icefield and you cut even more weight. The switch between tour and ski is super quick. When it comes to walking, you might as well be in a mountaineering boot. The narrow profile, flex at the ball of the foot and great range of motion really gives you confidence and ability when your moving over sketchy spots where careful foot placement is crucial.

              The boot is narrow, it probably won't fit a lot of feet, and ultimately, if it doesn't fit, it isn't for you. The thin plastic doesn't give you much give for boot punches if you have large bone spurs (like me). Although the boots plastic and liner is thin, it is still surprisingly warm, but it depends on how much you're moving and how warm a person you are. The boot isn't the most resilient so it does receive wear from your ski edges and rocks as you walk. The liner has duct tape in a number of spots but despite it all they're holding up. As a canadian mountain guide in training, I plan to put another 400 days of touring in these on 3 different continents over the next 3 years and I'm sure these boots will accept and deliver all my demands, nothing more, nothing less.

              Comment or Question?

              Accepts and Delivers

              TLT 5 Mountain review

              Checking out one of the coolest touring boots ever. Drew Tabke from Farellones, Chile.

              Sweet Touring Boots!

                These boots tour exceptionally well due to the removable tongue and unique lock cuff system in the unlock position. Very well thought out. Then when it is time to ski, insert the tongue, close the buckle and you have yourself a great skiing boot that can handle fatter skis! They ski well without the tongue even, so on some tours I leave it behind to save weight if the skiing is not going to be too technical and conditions are good.

                Bottom line: a light, super touring and great skiing boot that can help take your touring to another level!

                How did we tour without these?

                  That's the question I've been asking myself every time I take these boots out. The "up" in these boots is awesome. I've never actually found myself really looking forward to the up until owning these boots. The range of motion is huge letting me take bigger strides and go faster without having to fight the boot. The rockered sole and metatarsal flex provide for a more natural stride that is much more comfortable than franken-stepping.
                  Transition is a snap and very easy. Slide the removable tongues in (if you want) and lock down the two buckles and your transition is complete. You'll have to come up with something to kill the time as you wait for your buddies to finish fiddling with their clunky boots.
                  Then there in the downhill performance...which is excellent! With the tongues inserted, these boots ski similar to other stiff 4 buckle boots out there. The stiffness is pretty even throughout the flex, and you can really drive these pretty hard without blowing them out. I'm 170lbs and can't flex through these with the tongue in.
                  Bottom line; these boots are an amazing step forward in touring boots. Huge range of motion and comfort on the up, very stiff and responsive on the down. This is THE touring boot to have.

                  Quick note on sizing; I found that they run a little small. I generally take a 27.5 in ski boots (Scarpa, Saloman) but comfortably fit into a 28.5 in these.

                  boot pysched!

                    this is a great boot for AT tours, recreation rando rallies and I've even used it at the resort for some hike to ski at A-Basin.

                    I upgraded from the F1 Scarpa which I didn't like the throw down bar for locking....and the boot feels like a tele boot...which is nice with the flex....until you go the TLT 5 and there was no comparison: comfort, flex, weight, style!

                    What I should have bought originally

                      Ok, so I can't vouch for the longevity of these boots as I've only skied them a handfull of times, that said, they're great so far. I'm 5'9", 120lbs on a heavy day and ski primarily Dynafit Manaslu 169cm with Dynafit ST bindings. I originally bought the Zzeus boots. Coming from a solely alpine background, I was intimidated by the flexibility and light weight of touring boots. After skiing those boots for a season and a half, foot problems led me to a more flexible and lighter boot. In a size 27.0 the TLT 5's save me 1.6lbs PER BOOT. I have been able yo use the TLT 5's without any molding and my only modification was the addition of some Superfeet insoles. This is a HUGE change from the horrible pains my Zzeus' gave me even after two moldings and the addition of insoles.

                      My first day on the TLT 5 Mountains was a resort powder day due to nasty avy conditions. In 18" of powder these boots were instantly impressive. I could drive my skis as hard as I wanted with no downside. Through chopped sections everything was handled with ease. I even managed to go off quite a few jumps and drops without problem. I did not notice a single downhill compromise with these boots compared to my Zzeus'. Fully buckled with the tongue and power strap, these felt like alpine boots. I normally ski with my boots fairly loose and even still, these boots performed flawlessly! On groomed stuff I was able to ski powerfully and confidently. Again, no downfall at all.

                      Now onto touring. I did a day of laps at the local hill, and a longer 7hr, 5500' tour in the backcountry. It probably doesn't even need to be mentioned, but touring with these boots is absolutely amazing! They feel like hiking boots with the tops completely unlaced. The 60 degrees of rotation is for sure noticeable on the flats, allowing my stride to be far more natural and longer also. I skin without the removable tongues because I see no reason not to. Some people say they're too fiddly and such, but honestly, it takes maybe 10 seconds to put them in and even less to take them out. Fiddly to me is having to deal with 4 buckles at varying tightnesses and a powerstrap along with a walk/ski mode that often get bumped. That is fiddly. The TLT 5's are not.

                      The flexibility of these boots helps me to climb steeper slopes without needing to switch the heel riser. I can now climb slopes in the lowest setting when previously I would have needed to go to level 2, and so on. The less stiff nature of the boots also allows my feet and skis to sit completely flat on the ground. This is nice when skiing down hard pack or groomers, but most useful when skinning on off-camber slopes. My ankle can flex naturally, allowing my ski to sit flat against the slope while traversing. This of course is no substitute for digging in the edges, but it works well for shallow slopes that previously just aggravated muscles and tendons in my ankles and knees.

                      I did try skiing once without the removable tongues. This was done on a wind blown slope with pockets of powder. While not horrible by any means, and most definitely an easy solution to shorter descents, I prefer the extra stiffness the tongue provides.

                      What won the TLT 5's over my other options (Scarpa Maestrale, and Dynafit Zzero) was the touring mode, cuff rotation, extreme upgrade regarding weight, and the simplicity. For a while I was concerned that these boots would be TOO far to the extreme compared to my Zzeus', but after a few days of skiing, I was wrong to think that. I have a bit of a looser fit in my 27.0 size and haven't had a problem with cold feet yet. My feet did get "cool" while sitting on the lift, but never cold. By the end of the run, I was sweating and my feet were hot. I also like being able to finally use a slightly thicker sock.

                      Now for the necessary "bad" parts of the boots. Ummmm.......this is difficult to find anything...the top buckle that holds the black cable in place is kind of hard to open when wearing thick gloves. The removable tongues are kind of awkward to stash when not in use. I did 7hrs of touring with them attached to a carabiner on the hip belt of my pack and that seemed to work fine. If they could maybe just vanish when not in use, and re-appear when I need them that would be great, but so far the hip belt solution is working fine. They don't get in the way, and they go pretty much unnoticed. Yeah, that's about it. I know some people complain of losing the lower cable, and I did have one come out on a pair of boots in the store, but mine are holding strong so far.

                      Overall these boots are what I should have been skiing. They ski downhill in a myriad of conditions without problem and without any noticeable downfall in my opinion. Perhaps if I were 6'5" 230lbs and skiing 190 Megawatt these boots may be bad, but honestly, if you're in that situation, realize you need to be reasonable with your equipment choices. Being the size that I am, I can enjoy the lightweight equipment safely. The Performance model may be stiffer, I'm not sure as I've never even seen a pair in person. These boots tour amazingly and the cuff rotation is perfect. I added miles to my tour without a second though and my legs were really fresh after 5500' climbed.

                      If you can, test these boots out. If not, make sure you are being reasonable with your gear choices and go for these boots, you won't regret it!!

                      Greatest Touring Boot, Period.

                        So first about me: I'm 6'1" 140lbs, with a medium-narrow foot, and thin calves. I ski and tour hard in the Tahoe backcountry and definitely needed a light boot that could hang with all conditions and terrain we see out here. The TLT 5 is the most awesome touring boot I can imagine. Its more comfortable than a hiking boot on the ascent, and locks down solid and stiff. I would say that its equivalent to a flex 100 (I tried on the Tecnica Inferno 110 and 130s today, so just guessing on the flex). I've skied about 15 days on it this year so far, 3 in the resort. Right out of the box they fit my foot great. At first, the toebox will feel too roomy, but this feels great on the uphill, and doesn't compromise downhill performance too much. So read the other posts about the removable tongue, but it is a great feature, and only takes 10 seconds to put in. I've tried skiing without the tongue, and skinning with it in, just to see what it actually did. The tongue adds a ton to downhill performance, and when removed, greatly increases range of motion. This boot has an insane, 60 degree range of motion. So basically, you can drive home in these boots. Dynafit did this by creating two, overlaping, pivoting shells that allow a huge rearward, and forward bend, making the walk motion much more ergonomic. In my fritchsi/resort boot setup, I would get painful hip flexer strain, no longer with dynafit. To lock the boot for the descent, a square bolt attached to the upper cuff latch locks the two shell pieces together at a nice forward angle. For this, the two shells have to be lined up just right (your boot flexed at a certain angle). This can be kind of annoying to figure out, but I dialed it now and its fine. I suggest wailing on the power strap first, then lining up the shells and levering the cable back to lock.

                        My overall rating of the TLT 5 is great though, probably 9/10. It would be better to get the stiffer yellow "performance" boot, but I ski pretty hard and the "mountain" skis fine. The thing that will most likely blow you away most about this boot is its comfort and weight. It weighs as much as a true rando race boot, walks like a hiking boot, but skis almost as stiff your resort boot. Last year with my heavier setup, day missions would rarely be more than 2 laps / 4000ft, and this year its crazy! 3 laps / 6000ft is becoming standard! Prepare to dust your touring partners and send your touring game to a different level.

                        when will the new 13/14 version (tlt 6)...

                        when will the new 13/14 version (tlt 6) be available?

                        28.5 mondo.... my current boots (scarpa skookums) are 27.5 but after trying on the TLT 5 Mountain I found that 28.5 would be a better fit, (just a bit tight at my widest point of my forefoot on the pinky toe side...maybe need a punch out?) however with the extra 3mm of space in the new TLT 6's (as per reviews) I'm not 100% sure until I can get my feet in a pair...where can I go to suggest setting up a preorder system? Thanks for your help!

                        Hi all I'm just about to buy a pair of...

                        Hi all



                        I'm just about to buy a pair of Dynafit TLT5 TF-X ski boots, but can't decide on the sizing of the boots. I have a 280 mm foot length and size 27 mondo on my alpine ski boots.



                        Which is the proper size for my foot's length? I've read contradictory opinions on the web and don't want to order them and not to fit. The sizing chart on Dynafit's website http://media.dynafit.com/PDF/Conversion_Chart_Boots.pdf is of some help, but still can't decide on the size.



                        Thank you

                        try these on if you can. they are quite narrow, especially in the forfoot, but could work depending on your foot shape and size. IF you have a wider foot like I do you may want to wait till the tlt 6 comes out this fall! they are supposed to be a bit more roomy for those of us with fatter feet! Get to a shop and get them fitted properly if you want to be sure!

                        What is the difference between the TF and...

                        What is the difference between the TF and TF-X?

                        Best Answer

                        The "Performance TF" (http://www.backcountry.com/dynafit-tlt-5-performance-tf-alpine-touring-boot) is the ultralight carbon-cuffed model in the TLT 5 series. It shares the same ground-breaking construction, but differs with a full carbon fiber cuff and an ultralight liner. The cuff stiffens the boot considerably. I'd rate it at about a 110-120 flex, compared to the Mountain TF-X which has about a 90 flex. Lateral stiffness is similarly ratcheted up. The cuff and liner also make the boot a bunch lighter (175 gr less in a 27.5).

                        Hi, Thinking about this boot, but have...

                        Hi,

                        Thinking about this boot, but have no sense of sizing. I ski size 27.0 black diamond Custom boots and any smaller would be TOO SMALL. I know the 27 quadrant fits perfectly... but I've heard the sizing on these boots can be odd. Any advice?

                        These boots run narrow. Officially it is a 98mm last, but many feel it is tighter. Conversely, the BD last is known to be the widest BC boot. The length for you (27.0-27.5) may be the same, but if you have a wider foot, you may need to work with a good bootfitter. It will be well worth it!

                        I am going to be choosing size rather...

                        I am going to be choosing size rather blindly, as nobody near me stocks Dynafit. I measured my feet to be spot on 280mm long, but should I get the 28.5 to allow for some thick socks? Or will the size 28 be large enough for me if I heat mould the liner around my planned sock layers?

                        alo, If you are still in the market, you should probably be looking at a 29.0 if you have medium to narrow feet or a 29.5 if you have medium to wider feet. If you have really wide feet, this may not be the boot for you. Check into Black Diamonds for a wider fit.

                        Are these compatable with the Marker Tour...

                        Are these compatable with the Marker Tour F12 AT bindings?

                        Will these work with Voile Mountain Plate...

                        Will these work with Voile Mountain Plate bindings for a splitboard? Thanks

                        having trouble with cold feet. this has...

                        having trouble with cold feet. this has not been an issue for me for years-since they invented thermoplastic liners. any suggestions?

                        Best Answer

                        Both shell and liner are a bit thinner than typical to keep the weight down. If you re-cook, make sure you have room over the instep where your blood vessels run. This can make a big difference in the warm blood getting to your toes. Check for excess pressure by locking into the boot with a thin sock for a few minutes. Then step out of the boot, pull off the sock and note the red/pink areas. Attach pads to these areas directly on your skin, then re-sock and re-cook. Possibly use a thicker toe cap as well. These adjustments shouldn't affect the performance or loosen your heel fit.

                        can you climb with the extra tongue in as...

                        can you climb with the extra tongue in as it seems putting it in and taking it out all the time is a pain

                        Any recommendations for crampons to go...

                        Any recommendations for crampons to go with these?

                        I've been skiing this boot in colorado for...

                        I've been skiing this boot in colorado for 3 months....having a ball of foot numbing issue...need to go with a wider model...what about the garmont masterlite?

                        Best Answer

                        I've been using these boots spring in NA, all summer in SA, LOVE THEM but having some of the same issues with ball of foot. I've found that a lot of the pressure on my forefoot comes from the liner being extremely narrow, while the shell actually has enough width. So I used a boot punch and heat to extra-stretch the forefoot of the liner (in addition to thermofit). It got super bad on one long trip so I cut some material out of the liner at ball of foot.

                        Anyone know how these compare with the...

                        Anyone know how these compare with the Garmont Mega-Ride, which is what I use now.

                        Best Answer

                        I switched to these last year from 5 year old Mega-Rides. They are lighter and fit my foot a little better (I have a med-narrow, mid-volume foot and the Garmont's ran a bit big). As far as stiffness, they are comparable in both forward and lateral. Hope this helps.

                        Re. Binding-Compatibility... Phil's...

                        Re. Binding-Compatibility... Phil's question (April 27) about the binding-compatibility of these boots gained some inconsistent answers. Just to clear the air, will these boots work:
                        (a) Only with tech- (i.e., Dynafit-) compatible bindings? OR
                        (b) All Alpine Touring bindings (e.g., including Fritschi Freeride Pro, Marker Tour F12)?

                        Also, if the answer is (a), is this because these boots lack big enough welts?

                        I was told that these boots will only work...

                        I was told that these boots will only work with the Dynafit bindings, and not with AT bindings. Is this true?

                        I've read some concerns regarding warmth...

                        I've read some concerns regarding warmth with these boots. Anyone have any feedback on that score? I'm evaluating these against Scarpa Maestrales; I like the weight and lower buckle count of these, but certainly don't want cold feet, especially if I'm shelling out the extra money. Thanks.

                        Best Answer

                        I've been on them for 12 BC days, and 3 resort days now. I haven't gotten cold feet once. They fit very comfortably on the ascent, and combine this with your heart rate, and your feet will be warm. If your riding in the resort a lot, you probably will get cold feet (thin, lightweight shell), but not while touring... they're fine!

                        I've had pretty much the same experience as dwpow. When going up or down they've been fine as far as warmth goes. The only time my feet got cold was when I was sitting on a lift when I took them to a resort, but even then it wasn't anything unbearable.

                        what about this removable tongue deal?...

                        what about this removable tongue deal? does it ski o.k. with the standard tongue/cuff?

                        Best Answer

                        You can ski with or without the tongue. For anything other than rando-racing (or maybe a really flattish tour), I would certainly recommend skiing with the tongues. The cool think is that you can remove the tongues for a super long up and put them in your pack, and then add them for the way down. That method adds a modicum of comfort and reduces moving weight slightly.

                        The removable tongue system is brilliant. It is obvious there are no two way solution to both flexible and stiff boots, so adding a removable stiffener works really well. You can add or remove the solution very easily. I want to emphasis this because I beleive this would be the design crux; making it useful. One day when I was so tiered I forgot to replaced the stiffener, I rode without noticing it. It skis like the Scarpa Spirit 3 without the tongue, and skis like a four buckle boot with it. It's pretty wild really.

                        I always ski the Performance version with out the tongue. On the Mtn version I like the tongue in place if there is any serious down hill. The Mtn is pretty soft without the tongue. But no big deal to add it before the down.

                        Ok, so I am salivating and want em'. When...

                        Ok, so I am salivating and want em'. When is backcountry.com going to get more sizes (30) or do us big-footed Yanks have to fly to Europe to find a pair?