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  • La Sportiva - Synthesis Mid GTX Hiking Boot - Men's - Grey/Green

La Sportiva Synthesis Mid GTX Hiking Boot - Men's

$185.00

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    4527

    27 Reviews

    Details

    Surround your foot with better breathability and waterproof protection.

    The La Sportiva Men's Synthesis Mid GTX Hiking Boot feels surprisingly breathable for a shoe equipped with waterproof protection. That's because Gore-Tex's latest-and-greatest Surround technology allows 360-degree breathability. Compared to previous waterproof, breathable membranes that only cover the shoe's upper, Surround technology wraps a membrane around the upper and sole. You'd think this would decrease the shoe's overall breathability, but La Sportive fused a sole with mesh inserts that enhance the shoe's breathability while still providing a truly waterproof experience.

    The Synthesis also features a well-ventilated AirMesh upper with Nano-Cell technology for better support. STB technology unifies the midsole to the upper for a longer lasting performance, and the PU leather toe protects your foot from protruding rocks. Underfoot, the Synthesis uses a cushy compression-molded EVA midsole with cradling TPU inserts that keep your foot prime for miles. A shoe this good deserves the best sole, which is why La Sportiva used Vibram's superlight Nano rubber, and there's also an Impact Brake System for an improved downhill performance. 

    • Gore-Tex Surround
    • AirMesh upper with Nano-Cell direct injection
    • PU leather toe rock protection
    • STB technology
    • Compression molded EVA midsole with TPU inserts
    • Vibram Nano rubber sole with Impact Brake System
    • Item #LSP007H

    Tech Specs

    Upper Material
    AirMesh, Nano-Cell direct injection, PU leather
    Waterproofing
    Gore-Tex Surround
    Closure
    drawcord
    Midsole
    compression-molded EVA, TPU insert
    Sole
    Vibram Nano, Impact Brake System
    Claimed Weight
    14.6 oz
    Recommended Use
    hiking, ultralight backpacking, speed hiking
    Manufacturer Warranty
    1 year

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Awesome Boots

    • Familiarity: I've put it through the wringer
    • Fit: Runs small
    • Size Bought: 46
    • Height: 6'3"
    • Weight: 205lbs

    I like how versatile these boots are. They almost have the softness of my trail runners but have a very durable sole. I used them to climb Kilimanjaro last week and was very pleased. I did get one blister but I attribute that to only having done one break in hike before. These are very light weight but built to last many miles.

    Very good initial impression

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: 12.5
    • Height: 6'0"
    • Weight: 178lbs

    I am always hesitant to order shoes online having never tried them on, but I trusted the reviews here and the other reviews on a couple of backpacking webpages and went for it. I have had La Sportiva shoes in the past and have found that they run narrow; not the case here. As per other reviews the Synthesis runs true to size, possibly even a bit on the wide side. The fit for me is perfect; a bit extra room in length and width to accommodate foot swelling on long hikes. My main use for these will be for work. I am lucky enough to be able to walk to and from my job , around 2.5 miles one way through rocky and loose trails that are snow packed and icy in the winter with one half mile section of 300' elevation gain. Add to that walking all day at work, I will be putting anywhere from 6-10 miles a day on these shoes. I have been wearing Solomon Speedcross 4 GTX, but I was wearing the soles out in about 3 months. Additionally, I will be using these for overnight backpacking and day hikes in all types of terrain.
    The initial impression I have is that the Synthesis is more comfortable and stable that the Solomon Speedcross. The Vibram sole is quite grippy, and the heel seems to provide good shock absorption. The quick lace system is nearly identical to Solomon's and it has always worked well for me. I nearly forgot to mention the weight! Absolutely amazing! My digital puts them at just under 2 lbs for the pair. I will update this review in a couple of weeks after I have put a hundred or so miles on them.

    Poor Durability

      These shoes are comfortable, good support and traction, however after one year the lacing anchors tore through, there is no way to lace the shoes properly and therefore cant be used anymore, this is a shame as the rest of the shoe has lots of life left in it. My past Sportiva Shoes have lasted for several years. Quite disappointed.

      A jack of all trades on the trail

      • Familiarity: I've used it several times
      • Fit: True to size
      • Size Bought: 8.5
      • Height: 5'6"
      • Weight: 160lbs

      I have had these out on a few hikes and I feel like they are such a versatile trail shoe. The mid height fit is a great cross between a hiking boot and a traditional shoe, which inspires some confidence in the ankle support given how light they are overall.
      What really basically you have a Gore sock surrounding your foot that will keep you dry even if you decide to stand in a puddle of water. One key marker I noticed is that the surround membrane seems much more breathable than some of the other Gore footwear I have owned in the past, and my feet do not get nearly as hot or sweaty when I am out in them. I also think this makes the overall fit and comfort much better as there is no bulk or bunching around the toe or heel where traditional membranes have a seam construction. although I cant say I have thoroughly tested the waterproofness, as it is currently winter in the Wasatch, I have hiked through plenty of snow and melted puddles without even a hint of moisture on my feet.
      Sizing seems pretty accurate, I am in an 8.5 which is typical for me and the fit is spot on albeit a bit roomy around the toe box. which is actually nice in a hiker.
      The Vibram rubber is very grippy and has a great lug pattern for the trails around Utah. I think this will be a perfect shoe for the desert and peak baggin' around the Uintas once summertime gets here.

      Fastpackin' Boots

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: True to size
      • Size Bought: 10.0
      • Height: 5'11"
      • Weight: 175lbs

      I normally wear a 9.5 - a 10.5 depending on the brand. I was a 10.0 for sure in these - seemed to fit spot on, not running small at all. I had the chance to demo these, though didn't really get to put them through the test in the mountains or desert. I did do a few laps around the building and stood in our river / koi pond in front of our building, semi submerged. Gotta make do with what you got!



      Here's what I took away from my experience using them:

      - The Gore-tex Surround allows for them to be semi water proof. I didn't full submerge my foot as I wasn't that committed, but enough to stand in some water to see what happens. My socks weren't wet after it - though if you stayed for longer than I did they might have been. I did feel the water and it definitely retained water between the membrane and the sole until drained at an angle.

      - They seemed comfortable and supportive enough for backpacking and light enough to hike and scramble around in. Sole of the shoe seemed more than capable for baggin' peaks and making sure that you have plenty of traction with them. Unfortunately did not nearly put through the paces to comment at all on durability.



      If you have any questions about the boots, feel free to reach me at my direct line 801.204.4547 or my email cojohnson@backcountry.com and I'd be happy to help out with sizing or help put in an order for a pair!

      Fastpackin' Boots

      Great Lightwight hiking mid

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: Runs small
      • Size Bought: 10.0
      • Height: 6'0"
      • Weight: 200lbs

      A tough part about finding a great hiking shoe is are they comfortable and how much do they weigh? The synthesis is a great combo of both as it is as light of a mid hiking shoe as you can find and it is also very comfortable. Remember some of those hikes you are going to be in those puppies for 10-12 hours so they better be comfortable or your dogs are going to be barking by mile 3. I gave a rating that they run small at least for me as i have a high arch and finding a shoe that can accommodate that personally can be a challenge but going up a half size would be encouraged in this shoe even for most people. They are not super wide so that extra half size should help most of the general population.

      The quick lace system is very fast and easy to get in/out of the shoes without and hassle at all which is also nice if you ever need to tighten up on the fly. The Vibram soles are a nice and tough along with the shoe having a Gore-tex liner. Traction will not be an issue on any of the steep inclines or descending down a slope. You'll be good to go and don't have to wear a bulky, heavy hiking boot. Great for trail running if you like a tad more support around the ankle. All around a great hiking shoe and will be very happy with your choice.

      Great Hiking Shoe

      • Familiarity: I've used it several times
      • Fit: Runs small
      • Size Bought: 45.0
      • Height: 6'0"
      • Weight: 190lbs

      These shoes are great for hiking. They are very comfortable, completely waterproof, and breathable. I've worn them in the hot Utah Summer hiking, and also up in the Tetons. I have never had any issues with them at all. The Gore-Tex on them is amazing for keeping water out if you have a small water crossing or the weather starts to take a turn. I found them to run a tad small, so I sized up a half size from my normal size. I highly recommend these shoes if you're looking for a great all around hiking shoe from the small day trips to your light and fast backpacking treks. Feel free to reach directly out with any questions!

      Great lightweight boot

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: True to size
      • Size Bought: 10.5
      • Height: 6'1"
      • Weight: 225lbs

      I have used these boots as an everyday boot and loved everything about them at first but after wearing them for a while I have discovered that they are not the best for me. This is my first time wearing mid-height boots and I have found that these rub my ankles raw. Also, I am not the biggest fan of the quick lace system they have on these boots. It is a little bit difficult to get these boots laced up as tight as I usually like in a boot.

      These things would be great for a long backpacking trip where weight can be a big factor. They are very lightweight and completely waterproof. These bad boys are also so comfortable it feels like you are walking on pillows. The sizing on these boots run true to the size I normally wear. Overall these boots are great and if it wasn't for the mid-height ankle and the quick lacing system they would have been great.

      Great shoe!

      • Familiarity: I've used it several times
      • Fit: Runs small
      • Height: 6'5"
      • Weight: 205lbs

      Another Solid shoe from La Sportiva. I don’t own these yet but have sold quite a few pairs and also have worn them around the office a few times. I would say that they do have a narrower fit and are a lot lighter than I would have expected. They also have great support and the grip on the sole feels like it would do amazing on all terrain. I did talk to a customer who used these in a downpour and they said that their feet stayed dry the whole time, which is a promising to hear. Since they are Gore-tex, this also means they will be very breathable and do awesome if it is hotter outside. My feet tend to sweat quite a bit when hiking so I think this might be an awesome option for me. I plan on ordering these come spring time for my go-to hiking shoe around Utah. Let me know if you have any questions on them.

      good light weight hiking shoe

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: Runs small
      • Height: 6'2"
      • Weight: 225lbs

      These are nice and light shoes! I liked that they had good height around the ankles for extra support and protection from streams or wet trails. Good sole and grip, felt like I could smear on rocks and my feet would hold. I also liked the style and look of this shoe. The gore-tex liner kept my feet dry when I dipped them into a puddle and seemed to breathe well as I ran around in them. Overall I think these are a great day hiking boot/shoe! I wear a US men's size 13 and the 47 felt a little snug.

      One Shoe Quiver

      • Familiarity: I've put it through the wringer
      • Fit: Runs small
      • Height: 5'8"
      • Weight: 165lbs

      These things rock! They work great on any hike that will not be encountering a lot of wet terrain. I have used these on many hikes in the white mountains in NH and in Southern Utah. They run a little narrow but fit like a glove. I would order them about a half size up. And would recommend them for anyone looking for a lightweight hiking shoe.If you have any questions, hit me at 801-523-4075 or email me at borloski@backcountry.com

      Pretty solid low hikers

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: True to size
      • Height: 6'3"
      • Weight: 205lbs

      I got to test out these bad boys thanks to La Sportiva, and I have initial impressions, but my size 13 fit me true to size, I have a pretty regular foot, except for the fact it is a size 13, no high arch or anything, and not a super wide foot. The tread on them is solid, definitely grips well, even on slick rock. I think they take a little getting used to, as far as having them feel comfortable to walk around in.
      I would recommend them for like a week long backpacking trip, but not super practical as a day to day shoe. Just my opinion.
      If you have questions, please feel free to reach out: agoulden@backcountry.com

      La Sportiva Hiking Boot

      • Familiarity: I've put it through the wringer
      • Fit: Runs small
      • Size Bought: 46.5
      • Height: 6'3"
      • Weight: 170lbs

      This is probably the best fitting, most comfortable boot I have owned. It grips well in wet conditions, is flexible, light, waterproof. Took them to the forests in Colombia for a hike, they were awesome in the mud, wet conditions, and rocks. The only change I made was to put in regular laces because they afforded more control over the fit. I normally wear a 12, but had to get 1/2 size up, 12.5. I liked them so much I bought a pair of La Sportiva trail runners.

      High Hopes

      • Familiarity: I've put it through the wringer
      • Fit: Runs small

      I had high hopes to make these my next backpacking boots, but after having them for about a year now I'm not that impressed. I went a size up and they still feel a bit narrow and small - I could've gone bigger but they next size up felt too big. After about 6 months, both toes started to peel which seems crazy for boots at this price. The waterproofing was good, but not great after getting them pretty wet on a few hikes.

      Looks like I've gotten all I can out of these things, looking for something else for my next pair.

      Comfortable shoes

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: 8
      • Height: 5'3"
      • Weight: 170lbs

      I have worn these shoes for about 5 months now. They have been in show, streams, rain and mud, and dry surfaces from streets to gravel, dirt and rocks. I have had plantars faciatis in the past so I put off the shelf insoles in all of my shoes. I expect that doing that limits the gore-tex surround but it is something that I need to do. I have been very pleased with the performance of the shoe on grip for both wet & dry surfaces. The only real drawback or issue that I have is that I find that the heel compresses very easily now. As I tend to pronate as well I find that my heels tend to lean to the inside. If I change my stance and put more weight on the front of foot it naturally goes away. I'm not sure that it bothers me, I only notice it initially and I try to be more consious of my walking. But my balance is fine crossing streams over logs or rocks. I have put over 200 miles on these shoes and outside of the heel they feel great and still perform. They are still water proof. I have had some gore-tex shoes that after many miles I wear a hole in the gore-tex membrane where the shoes bends before the toes. But these are still going strong.
      I did find they were not good for snowshoing as the uppers are too flexible and the snowshoe straps dug into my feet. But they aren't meant for that :)

      Run small. Initial quality issues.

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: Runs small

      I want to love these but am on the fence. As others have mentioned, they run small. I ended up going 1 full size up. I usually wear a 10.5 and purchased the 10.5+ first. Felt snug at home, but after my first trip (20+ miles- climbing Mt. San Jacinto), it was obvious they were too small. Returned for a EUR 45, size 11.5 (I've never worn a 11.5 in any shoe). On both sizes, there was an odd spot at the back of my left heel that didn't seem to fit right. Figured it would wear in.



      Went backpacking (about 21miles- climbed San Bernardino Peak) with the new size this weekend. Got blisters on both feet in the same spot where I felt the issue on my left heel. Seems to be where the top edge of the insole transitions to the shoe. I'll try new insoles to see if that helps.



      Traction was ok. Scrambling over boulders and such, they felt great. Loose gravel/ sand was iffy. Probably an issue with all shoes.



      On both shoes, the toes have started to peel already. On the first pair, the sole of the heal started to come apart. To be fair, it was probably caused by me dragging my toes and scraping over rocks etc.



      They are light weight and didn't seem to take much/ any break-in to feel comfortable (except for that spot on the heel). Did not do any water crossings so can't comment on that.



      I noticed I did not get any rocks or sand in my shoes which was nice.



      I've never bought a pair of shoes this $$$ so I was hoping for a better experience. Might be my hiking/ backpacking inexperience, but, as I mentioned, I'm on the fence.

      Run small.  Initial quality issues.

      Almost Gore-tex

      • Familiarity: I've put it through the wringer
      • Fit: Runs small
      • Height: 5'10"
      • Weight: 165lbs

      These mid boots are great day hikers! I've used these down in Moab walking some creek beds and they have worked ok. The Gore-tex in this shoe is not your full Goretex that you see in normal boots though. You will get wet a lot faster! But they did work great splashing through a bit of puddles. They are comfy and lightweight. I like the mid height shoes to help with a little ankle stability over a standard height shoe. Note that La Sportiva is a bit smaller so size up a half size at least in these. I have a 10 and should have went with a 10.5.



      I took off that star for the waterproofness. Otherwise they are great if you do not plan on getting too wet.

      Almost Gore-tex

      Good while they lasted

      • Height: 6'2"
      • Weight: 160lbs

      I bought these for a 10 week backpacking trip in Patagonia. They were fantastic for the first two weeks but then they quickly fell apart. They were punctured by calafate thorns and lost their waterproofness. The sole detached from the front of the shoes and the fabric on the heel wore-out. They were completely blown-out when I got back stateside. That being said, I was hiking off-trail with an overloaded pack . If I was sticking to trails with an ultralight setup, perhaps they would have lasted longer. Because I was using them beyond their intended purpose, I will give an extra star (3)

      Awesome Shoes, Run Small

      • Familiarity: I've used it several times
      • Fit: Runs small

      A customer of mine purchased these shoes in a 45.5(US 12) and had to exchange them for a 46.0(US 12.5). He spent a week backpacking a section of the Appalachian Trail starting at Springer Mountain. He said the boots were awesome. They kept his feet cool and dry through two days of nonstop rain, and provided excellent traction on muddy trails and slippery rocks.


      Get in touch with me if you need help finding great hiking shoes and other gear for your next hiking/camping/backpacking adventure!

      Unanswered Question

      How does the sizing on these compare to the Wildcat Trailrunner, especially the toebox?
      I normally wear a size 11 but went to a 12 with the Wildcat and it is a perfect fit.