Inov8 - Trailfly Zero
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Reddit Reviews:
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Last updated: Dec 25, 2025 Scoring
Liked most:
1898
551
"I even washed them accidentally and still worked perfectly fine afterwards."
"Been using them for about four years working out in my gym, and cycling daily (45+ minutes on a bicycle outdoors)."
"They last absolutely forever (I know 1980s models still in daily use)"
561
131
"I was quite impressed with its comfort and trail capabilities, and truly believed I had found an excellent shoe for my long runs and hikes. ... the New Balance Hierro v9 remains my top choice for comprehensive trail running. Its superior comfort and, crucially, its consistently reliable grip in varied and challenging conditions make it a more dependable partner on the trails I typically encounter. ... I feel more secure in the Hierro, and that confidence is key. In fact I will be using it for my upcoming races and that says it all."
"The Vibram Megagrip outsole on the Hierro v9 is simply outstanding. Its 4.5mm lugs provide excellent, reliable traction across various surfaces, from dry dirt to slick roots and muddy patches. I've always felt incredibly secure, and it consistently inspires confidence in diverse conditions. ... Great Vibram outsole grip, even on mud and wet rocks"
"The Trabuco 12 have been the best trail shoes I’ve ever owned. ... I’m 6”4 and charge hard over serious rocky terrain…and I feel completely safe in them."
332
67
"I didn’t slip once. The new soles on these shoes had an awesome grip on the mountain. I felt very secure."
"the shoes felt great, had no slippage whatsoever, were cushioned, responsive, and comfortable. I ran up and down the mountain without much concern about where my feet were placed... the shoes handled it wonderfully."
"Got me through a week with everything Utah can throw at you - snow, mud, dirt, gravel, sand, slickrock, slot-canyon scooting, and the occasional stream crossing - and I never felt unsure of my footing."
75
8
"Never had a blister, no support issues and most of the time I forget to cinch the laces right at the trail head and I don't even notice. ... Incredibly comfortable, right out of the box."
"Foot-shaped toe box ... super roomy ... Great for comfort and natural splay"
"Super comfortable right out of the box."
105
21
"They have a normal heel and midfoot, but the forefoot is very roomy. ... My feet haven't felt so good in years."
"Topo is also legit wide. ... I wear a women's D width and their wide shoes are TOO wide for me. That never happens with my hobbit feet 😂"
"the wide toe box concept was a life altering discovery for me. ... Topo makes durable shoes with wide toe box"
Disliked most:
22
62
"Also, the grip was really crap, particularly when it’s a purpose built trail shoe."
"Sections of the trail were fairly muddy this time. ... It was there the shoe washed out over and over again. ... The experience was similar to trail running in road shoes. ... There was a total loss of grip. ... We also need to see a shoe with longer lugs and a better lug pattern to give confidence in wet conditions."
"Tried my Ultraventures on a recent high route in wet weather and fell twice on slick rock/moss, they are relegated to cutting the grass now."
5
11
"the material is starting to tear on both sides where my foot bends. ... Low miles on the shoes. ... so it appears durability has decreased as well. ... It’s very disappointing."
"total lack of durability ... delicate so it falls apart when you bash through heather or bracken ... aren nearly as durable. They fall apart after really quite limited heather bashing ... fall apart bashing through heather ... When the mudtalons fell apart after one run"
"I had two pairs start to delaminate at the toe bumper after 40km and 60km respectively!"
17
12
"The only problem I ever have with them is it seems their toe box is too narrow compared to other brands. Hard on the feet with long runs."
"the Xero aren’t quite wide enough for me"
"Nikes are so narrow they don’t work for me."
7
6
"hate the lack of energy return. ... Feel like I've got bricks on my feet after 50 miles!"
"that pair wrecked my feet within the first week."
"The Gel Trabuco Max felt as if the insole/midsole was completely flat. Zero arch or other support."
0
4
"the new Innov8 last shape I find really narrow in the mid and quite long in the toe so I sent them back."
"The problem is that the precision fit isn't precise - a massive step back given their intended use."
"the new Innov8 last shape I find really narrow in the mid and quite long in the toe so I sent them back."
I started noticing this a couple years ago and planned accordingly. For me I have huge feet and it's hard to find good shoes. For those in my situation and like a low drop and low rise, look into Inov-8. I've only bought these shoes since early '23 and I hope they never change.
r/trailrunning • Why are so many trail shoes now high stack + high drop? ->They still/again have zero drop trail runners? Trailfly zero, mudtalon zero. Trailfly speed is 4mm drop. So I'm not sure if you're looking in the right place?
r/trailrunning • What happened to Inov8 shoes? ->Topo mtn racer has better grip. Inov8 has better grip also; Trailfly for hard trails and Mudfly for wet/mud.
r/trailrunning • What to choose as second shoes? ->Long reply here but I understand this quite niche problem all too well. I have a bunion in the same place on left foot but actually have skinny midfoot so always struggle to get a lockdown in 'wide' shoes. The Inov8 Trailfly and their new range works well here. I'd actually go for the standard fit over wide as the toe box is already foot shaped. The width I think is in the midfoot. For example, I have a pair of precision fit Mudtalons and get a super snug midfoot lockdown but the toebox still lets my foot spread. The problem you actually have is that a lot of 'wide toe box' shoes still carry that super straight line on the inside of the foot which obviously doesn't work. Even the Prodigio Pro mentioned is quite accommodating but suffers from this to a degree as the bunion pushes the mesh out and can become uncomfortable by forcing your foot or all toes away to the side. Salomon shoes are quite bad for this, even though I suck it up and wear them as the midfoot just suits my feet. The Trailfy is the comfiest shoe I've worn in years, and I've even cleaned mine up and now wear them for walking around daily and the gym. They do a Trailtalon too if you need more softground grip, plus a road shoe. Edit to add: if anything like me, mine is just on the one foot so if I buy wide shoes, the other is super sloppy. This is why a better shape toe box works better than a wide fitting shoe in my opinion.
r/trailrunning • Help needed to find shoes that fit these feet. ->Inov8s are the answer.
r/trailrunning • Wide toe box but NO zero drop recommendations ->I've been using Inov8 TrailFlys and love them. Probably easier to get where you are. If you can find the Ultra 300 G (discontinued) in your size, that's my favorite for racking up miles in the Sierra.
r/Ultralight • advice wanted on trail runners for hiking ->I’ve been wearing Inov-8s for 15+ years for trail and fell running and even moved to them for XC races when achilles injuries meant I could no longer wear spikes. Always done the job for me, reasonable value and regularly available with chunky discounts online.
r/trailrunning • Looking for my first trail running shoes..help needed ->Inov-8 has a bunch of models in a wide size now. Even the older models I use have a lot of room for my toes. Durability is fine I think, compared to what I read about Altras.
r/Ultralight • advice wanted on trail runners for hiking ->I'd say yes (not having used the latest models personally though). I find mine very comfortable.
r/Ultralight • advice wanted on trail runners for hiking ->I can also confirm the durability of Inov-8s!
r/Ultralight • Another discussion on shoes - please help ->The new Inov8 shoes all have anatomical toe boxes ( at least as wide as Topo), and their Trailfly (4mm lug), Traltalon (6mm), and Mudtalon (8mm) are all getting zero-drop versions released in the next couple of months. They will have a 12mm stack height though.
r/trailrunning • Does barefoot/barefoot-friendly trail shoe that can handle mud exist? ->I am in the same boat with wide flat feet and about 200lbs. I have found the best success with the Altra Lone Peak (although I know you said you didn't want zero drop). The other shoe that has worked for me is the Inov8 Trailfly in wide. They also just released the Trailfly Max if you want a bit more cushion. Both are 6mm drop.
r/trailrunning • Looking for wide fit trail runners. OG Saucony Xodus Ultra lovers, what have you switched to? ->Don’t know of any places that offer that kind of support but you could try inov8. They’re outsoles are supposed to be tough. The ones I’ve used fell apart before the sole showed any wear. They’re sizing isn’t very consistent though so worth trying in a shop if you can find them.
r/trailrunning • Getting back to running after paralysis: check ✅ / Making my shoes last more than 3 months: not check ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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