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The Terrex Fast R Mid goes the extra mile … so maybe you can, too.

The faster you ascend a trail, the more stability and support you need from your boot. The waterproof Adidas Outdoor Terrex Fast R Mid GTX Hiking Boot provides said stability and support in spades with FORMOTION technology and a slew of other tech, such as a TRAXION outsole and speed lacing. The end result is a lightweight workhorse with a sleek silhouette and an obsession for moving quickly.

  • Gore-Tex Extended Comfort membrane maintains breathability while keeping your foot dry
  • Speed lacing stays snug all day and makes tightening easy
  • FORMOTION technology located in the boot's heel adapts to uneven terrain, alleviates pressure on your knees, and reduces sole angle velocity for a more natural step
  • Torsion Bar technology is a lightweight shank that provides midfoot support, control, and protection without adding weight
  • Protection plate protects the forefoot from potential encounters with sharp rocks or sticks
  • TRAXION outsole is lugged specifically for gripping the trail, with speed in mind

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Here's what others have to say...

Are these boots going to stretch in width at all? I just recently got a pair and they do run narrow. I'm okay if I leave the laces almost all the way out, but it would be nice if they gave a little over time.

Adidas do tend to run a bit on the narrow side, they will loosen up and widen out a bit with some use. Also, if you're not satisfied with the fit within 30 days of your purchase, you can return them for store credit if you'd like.

Unanswered Question

The shoe featured in the main picture is a different shoe from the one pictured in all of the "detailed" pics. Which of these two shoes is the one offered for sale here?

Adidas Fast R GTX hiking boots

Putting the Fast Rs to the test! After a 3 day break-in period I took them to San Miguel Mountain in San Diego. Love these shoes! They do run a bit narrow and you have to find the right tension(lacing system) for your feet. I used these boots with Superfeet Blue inserts and hiking socks from Sports Authority. I would not recommend if you have a wide foot.

Prior shoes were Salewas and Merrells.


Great Shoe

  • Familiarity:I've used it several times
  • Fit:True to size

A recent purchase, these shoes already feel broken in. Quite possibly the best trail shoe I have owned. Great rugged sole with supportive yet light weight uppers. The quick lace adjustment is easy to use and as advertised. Just completed a 20 mile back pack with them and they did great on rocks and creek crossings as well. I have been using low cut hikers for a long time but I just may be changing my tune. Truly comfortable.

I see that there is a Fast R (this shoe)...

I see that there is a Fast R (this shoe) and a Fast X edition of this show. Both seem very similar. Can you tell me what the difference is and if one is "better" than the other?

The only difference I can tell is the X is slightly "heavier duty" than the R. If you look closely though, the R has a lifetime warranty according to the backcountry website, compared to 6 months with the X.


Not completely satisfied.

    Not a dialed in fit as I had hoped. Also the waterproof specs did not meet my expectations. I have trudged through some streams in these hikers and have come out with wet feet, even just hiking in the rain my feet end up wet every time. They are fairly comfortable but they tend to rub the outside of my foot near my pinky toe. Also, the lacing system if convenient and quick but it doesn't dial in the fit as you could do with normal laces. Maybe my feet have the wrong shape for these hikers. I've thought about it and am convinced that I could not go a half size up or down. My foot also moves from side to side on uneven terrain while hiking.

    I hoped for a bit more in this hiker but was let down unfortunately.

    what is the total weight of both of these...

    what is the total weight of both of these boots



    1 lb 2 oz, roughly. Says my friend who has these.


    Great Shoe!!!

    • Gender:Male
    • Familiarity:I've put it through the wringer

    This is a great light hiker. This is my shoe for my fast early morning 14ers with my boys!!! Love 'em!!!

    Adidas Terrex FAST R, Italian Volcanos

    Adidas Terrex FAST R, Italian Volcanos

    Having trouble updating my review, but the FAST R slider lacing system couldn't take the micro-pulverized ash. Locked up the slider. Maybe a manufacturer's defect, not sure. 5 stars gone, 4 stars for now. But, the durability was great as I put them through the wringer and they held up to abrasion and scuffing. Still great traction; best I have ever had!

    Are these waterproof?

    Are these waterproof?

    Yes, aside from the large hole in the top.

    Best Answer

    Sort of water proof. I would call them water resistant. The Gore-Tex layer is probably a single, so the shoe won't handle prolonged exposure. I have had them wet out in hard rain in about an hour, but that is as much as one can expect with a hybrid boot/trail runner.


    Rubbed me wrong

    • Gender:Male
    • Familiarity:I've used it once or twice and have initial impressions

    the mid GTX had a very rigid tongue and as i wore it around the house it was very uncomfortable.

    i did purchase the same model but in the low version and it is awesome.


    Wave of the Future

    • Familiarity:I've put it through the wringer

    Here we go for the Terrex FAST R GTX, as I have had them for three months now, with several hikes in rain, some heat and various terrain.

    -Fit is true to size. I am a 10 1/2, with a mid volume foot. They fit like, well, glove for you foot.

    -Lacing system is similar to lots of other brands. They use a little slider thingy so you can dial in the lacing from the toe box to the top. The little button that depresses in order to slide the "laces" does not work very well on mine. A minor annoyance overall.

    -Amazing traction, in nearly any condition or surface. It's like magic. Down hill braking is excellent, the sides grip well during class 3/4 scrambling, almost like an approach shoe with randing. Excellent on scree, rock, water rock, you name it. Yes, on really rugged trails, you will feel sharp-edged rocks; but these are basically sneakers on steroids and NOT a mountaineering boot, so that is to be expected. But even though I could feel the sharp rocks and stuff, they didn't bother me at all...even after long days, no bruising or sore feet.

    -When I took them out of the box and saw the construction and light weight, I thought they would wear down quickly like my Inov8 360 Para's did. Not so! These are WAY tougher and much better on your feet than those overpriced hunks of junk.

    -Ankle support is good for how light this hybrid hiker is. I found myself not worrying about rolling my ankles...they will hold up, even under a load.

    Overall, I love this "boot", or super sneaker, whatever it is. I find that I go faster and harder for longer wearing the Terrex. No, this is not a Viagra review, but these Adidas do make me feel younger in that 'special way'. I love them. The start of a beautiful relationship...

    Unanswered Question

    Where can I go in Kansas city to try on?

    Where can I go in Kansas city to try on?


    Love it!

      I am delighted with this boot. They are extremely light, but provide excellent ankle support and cushion. I am 6-1 and weigh 220 lbs. The soles have incredible grip. It took a while for me to to get used to the wire lacing system, but now I find it far superior to traditional laces. My only concern is what happens if they break? I had to replace the insoles with Super Feet(orange) insoles because I need additional support for heel problems. I have to do this with every shoe/boot I wear. I've had numerous comments too about their appearance: Very cool looking.

      Hey there. I simply cut the slider thingy off after the volcanic ash destroyed it. I then tied a knot on the fixed end that runs through the eyelet....then pull the opposite tight like a normal shoe and tie them. This works actually quite well as the laces are of a material that is striated and therefore stays tied.