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Details

  • Water-resistant suede leather is paired with tough, high-tenacity nylon to ensure that the uppers are durable and flexible, offering good support and breathability
  • Gusseted scree tongues and padded ankle cuffs add protective comfort at ankles; rubber toe bumpers protect against impact and abrasion
  • GORE-TEX® waterproof liners let feet breathe while protecting them from the elements, keeping them dry and comfortable
  • Wicking nylon linings quickly pull excess moisture away from feet for enhanced comfort
  • Molded EVA midsoles offer lightweight shock absorption and cushioning for all-day comfort
  • Thermoplastic urethane plates provide torsional stability while protecting feet from stone bruising
  • Vibram® rubber outsoles on the Asolo Fission GV hiking boots feature a tread pattern optimized for grip on descents and good forefoot protection and grip
  • Boots can be resoled

Imported.

View all Asolo Women's Day Hiking Boots

REI membership

Specs

Best Use Hiking
Footwear Height Over-the-ankle
Footwear Closure Lace-up
Waterproof Yes
Upper Suede leather/high tenacity nylon
Lining Gore-Tex waterproof breathable membrane/nylon
Midsole EVA
Support Thermoplastic urethane plate
Outsole Vibram rubber
Can Be Resoled Yes
Average Footwear Weight (Pair) 1 lbs. 15 oz.
Gender Women's

Size chart

Rated 5 out of 5 by from Asolo is Great!! THESE ASOLO BOOTS WERE THE ANSWER TO MY PRAYERS! I can hike again finally! I have a foot injury I will have to consider every time I buy a pair of shoes from now on. I have plantar fasciitis and I needed a stiff sole. I didn't realize the break in time these would require and my body had to get used to them too. I do have fairly flat feet and these boots do not have a very high arch which is great. I feel supported by them when I lift heavy loads and I am comfortable during and after the hike. I do not use them for everyday use as I find them uncomfortable on pavement (but then again I don't believe they were made for pavement). I just love these boots!!
Date published: 2013-12-28
Rated 5 out of 5 by from 1000 miles later, heck yes, nice boot! :) I bought these first part of June 2016, they fit my slightly wide front foot/narrow heel combo super well. Toe box is super strong, mine has taken a lot of rock hits. I do all kinds of climbing and hiking in these boots on Hood, the Gorge, the Coast Range, Central Oregon. Break-in on my heels was rough because I didn't keep the laces snugged well toward the end of a 24 mile loop around Three Fingered Jack. Stiff and protective soles, great dry and wet rock traction. Waterproof, too. I did buy other insoles for mine, which is pretty much all my boots (ski, tele, etc) get better insoles. I've hiked scree to mud and everything in between with these and I love them. Really great boots!
Date published: 2016-09-21
Rated 5 out of 5 by from Love this boot I bought this boot last summer to do the John Muir Trial hike in the fall. I broke them in prior to going - about 3 miles a day for a bunch of days of walking on country roads- never a blister(I used a single sock layer when I broke them in and double socks-one thick and one thin- both wool) for the hike- only blisters I had were late in the hike and they were minor. These were one of my most favorite items on the trail- I really liked the way they feel on my feet- lighter than most of the all leather boots, but with great support. They held up very well, kept my feet relatively cool when it was hot and comfortable and dry when it snowed - 12" over Mt Whitney - all in all a really good boot.
Date published: 2014-04-02
Rated 5 out of 5 by from THE boot I've been wanting a good backpacking/hiking boot that will last a while and be comfortable for a long time. I went into my REI and tried on several boots, but ended up trying this one on a few times. I wanted there to be something wrong with them. It was just too good to be true. It had to be. But, after reading so many awesome reviews, I decided to give them a go. This boot is incredible. Broke in great, saved my ankles a couple times, and not a single sore or blister after 28 miles in the wet, slippery, rocky Smoky Mountains. They dried quickly when they got wet (never wet on the inside) and I never had a point where I was ready to tear off my boots at the end of a long day. I'm so happy I found my boot.
Date published: 2014-12-09
Rated 3 out of 5 by from Asolo Fission I wish I could've kept this boot because it is perfect for my plantar fasciitis and it is sturdy. I experienced strain at my achilles while hiking. And after the hike I would have pain at the ligaments at my ankle that I sprained 8 years ago and stiffness/pain at my ankles the next morning. I think it's a great boot, but unfortunately not for me. I've never owned a boot like this before so maybe I don't understand what it takes to break it in. But I wasn't willing to risk injuring myself to find out. I hike average 5 miles a few times a week. I just got back into hiking after 3 years of healing from plantar fasciitis. I do think it's a great boot, just not for me. So today I returned them and I'm trying another pair of Asolos.
Date published: 2013-08-19
Rated 2 out of 5 by from Seam Gave Me Blisters I wore these for a short 3 mile walk and no matter how I tied them, I was getting rubbed on my heel from the seam. However, I did spray them with the hose and I can tell you they are waterproof! I am a size 7 and wore a size 6.5. The shoe does run wide (which is great for people with wide feet like me). It's a shame that seam rubbed because other than that they were very comfortable. However, I purchased them at a garage sale on a buy one get one free deal with a pair of Lowa Renegades (which I highly recommend if these boots didn't work for you!), so I'm not heartbroken and am thoroughly happy with the other half of my purchase :)
Date published: 2015-05-27
Rated 5 out of 5 by from Comfortable From Day One I did not want to get new hiking boots as I was afraid of the "break-in" period and I had recently had an ankle injury. However no worries with these boots. Comfortable from day one on a slightly swollen ankle that I wore a brace on and on the non injured foot one pair of light wool socks and after 8 hour of hiking NO PROBLEMS. Light weight despite the large "look" of the boots, in and out of mud puddles and no wet feet! Great support, did not slide in mud or snow as we hiked (tested in the Colorado Rockies).
Date published: 2013-09-25
Rated 5 out of 5 by from Great boots I had a pair of Asolos that I bought over 10 years ago that I loved. I finally retired them this year, and started looking for a new pair of boots. I tried on a few different brands, but the Asolos fit me the best. They feel a lot like my old boots, but I did get a 1/2 size smaller. It seems like these boots run a little bigger than the others I tried on. My feet are on the narrow side, and the Asolos work well for me. Other brands, like Keen are too wide and never fit right. I have gone on a few hikes with them, and so far so good. They are light, required no breaking in, and seem to be good in wet conditions. I had to do multiple stream crossings, and at one point my toe went in pretty deep. My feet stayed dry the whole time. I tend to do longer hikes (6+ miles) on rocky terrain, and these boots should give me the support and durability I need.
Date published: 2013-01-31
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Do these run big, small, or true to size? 

Asked by: trefrogz
They run big!!! I had to return my 7 for a 6.5. I would definitely try them on. Some people said they needed to go one full size down.
Answered by: CassNeub
Date published: 2016-05-30

What features make this boot exclusive to REI? How does it compare to the other 2016 Asolo women's boots e.g. the Futura GTX? And the much beloved and discontinued Asolo Attiva GTX? I am looking to replace the Attiva GTX after 6 years of heavy use.

Asked by: Beeeater
Asolo made the Fission GV Hiking Boots just for REI. They are very comparable to the older Attiva GTX Hiking Boots. Both have a thermoplastic urethane shank, Gore-Tex waterproof/breathable membrane and suede leather upper. The Fission GVs have a slightly better outsole with Vibram rubber.
Answered by: REIservice
Date published: 2016-07-15

I wear custom orthotics, will they fit in these boots?

Asked by: MaiseyWalks
Separate inserts can be used in these boots.
Answered by: REIservice
Date published: 2016-11-29

Are these boots appropriate for a multiple day, over 75 miles hike? Or do I need to go with something different? 

Asked by: Dani4386
​The Fission GV Hiking Boots are a great choice for a long backpacking trip.
Answered by: REIservice
Date published: 2016-08-15

I have been wearing the Men's Asolo Drifter's for a while. I love everything about them except the weight. These appear to be nearly a pound lighter? Other than weight, what are the differences? Support? Or just ave men's size is more than ave women's?

Asked by: Lady Bigfoot
The Fission is very similar to the Drifter and have most of the same features. They are lighter because they are a women's boot and are much smaller than the men's, but sizing aside they are very similar in weight. The main difference will be that the men's Drifter is wider because it is a men's shoe and the Fission will have a much more narrow fit.
Answered by: REIservice
Date published: 2017-05-09

I also have the problem several others have mentioned of these boots blistering my heels repeatedly on hikes with elevation gain. Does this eventually go away? Any suggestions aside of tightening the laces?

Asked by: sbh246
Besides adjusting your lacing technique, you may try replacing the insoles or making sure you have on appropriate socks. Here are some tips on boot fit: https://www.rei.com/learn/expert-advice/hiking-boots.html#HikingBootFit
Answered by: REIservice
Date published: 2017-02-22

How does these compare to the Asolo stynger gtx? Don't have rei nearby to try on and compare

Asked by: njuneja
Both boots are very sturdy and are excellent for backpacking, but the Fission is much lighter weight than the Stynger.
Answered by: REIservice
Date published: 2016-11-20

Are these good for an Everest Base Camp Trek? My current Keens are giving me hotspots and blisters by the toes and ball of the foot.

Asked by: City Gym Rat
​These boots are a fine choice for an Everest Base Camp trek.
Answered by: REIservice
Date published: 2016-11-28
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