Nike ACG Ultrafly Trail

4.5out of 5 stars

How did this product fit?

46% between Runs Small and Runs Big

Would you recommend this product?

How comfortable was this product?

89% between Uncomfortable and Very Comfortable

Rated 5 out of 5

How did this product fit?:True to Size

How comfortable was this product?:Very Comfortable

Would you recommend this product?:Yes

My new favourite shoe!

Love these! Stable, grippy, comfortable and FAST!

I'm running 20km+ on dirt, gravel, grass and tarmac. Nothing too technical, its Surrey hills basically.

The wide forefoot is good for me. The heel and the lacing are secure, I get a good hold in the heel without having to do a runners knot.

Tariq7f0314c1740a465eb949cfaca3d8d477

19 Jul 2026

Location

Size you normally wear

What activity do you use this product for?

Longer runs (20+ km)

What type of surface do you usually run on?

Trail

Rated 5 out of 5

How did this product fit?:True to Size

How comfortable was this product?:Very Comfortable

Would you recommend this product?:Yes

Amazing trail shoe.

Fabulous trail running shoe.
I run 5-10k trail runs three times per week, so a fairly amateur runner. I have been using the Pegasus Trail 5 and Peg 4 GTX mainly this year which are both great shoes. I wanted to try these due to the full ZoomX, carbon plate and Vibram sole. I was hesitant because a lot of the reviews online (incorrectly) paint this as a focussed race shoe only. It’s not.…

TomW644103353

11 Jul 2026

Location

Size you normally wear

What activity do you use this product for?

Mid-range runs (6-19 km)

What type of surface do you usually run on?

Trail

Rated 4 out of 5

How did this product fit?:True to Size

How comfortable was this product?:Very Comfortable

Would you recommend this product?:Yes

Love the color!!! Wide toe box and narrow vamp, GREAT cushioning!!!

The turquoise is beautiful. I wish there were more athletic shoes in this more monochromatic color style. I removed a star due to what I consider a quite wide toe box, yet relatively narrow vamp - and due to this, sizing down wouldn't be an option. I also prefer a cloth material as opposed to this thin whatever-type material, (I realize this will propel water more) but that's just a personal…

KimberleyN539310933

2 Jul 2026

Location

OH, US

Size you normally wear

What activity do you use this product for?

Walking

What type of surface do you usually run on?

Road

Rated 5 out of 5

How did this product fit?:True to Size

How comfortable was this product?:Very Comfortable

Would you recommend this product?:Yes

I love the new color iv been waiting for one that is actually red for a long time. my favorite color is red and I just did not like when they made one orange and called it hyper crimson.

carson796090627

18 Jun 2026

Location

Size you normally wear

What activity do you use this product for?

Shorter runs (1–5 km)

What type of surface do you usually run on?

Trail

Rated 5 out of 5

How did this product fit?:True to Size

How comfortable was this product?:Very Comfortable

Would you recommend this product?:Yes

The shoes are spectacular

These shoes are phenomenal. It took a little break in period but they absolutely sing. I’ve done multiple trail races including a 50k in them. I have over 280 miles on them and they still have pop and feel bouncy and fresh. The toe box is a perfect width. The stability (compared to the ACG zegama) is a little worse, but nothing to be concerned about. They are fast and have held up extremely well.

Opens Media Viewer to photo submitted by TerryS923911156

TerryS923911156

16 Jun 2026

Location

Size you normally wear

44.5

What activity do you use this product for?

Longer runs (20+ km)

What type of surface do you usually run on?

Trail

Rated 5 out of 5

How did this product fit?:True to Size

How comfortable was this product?:Very Comfortable

Would you recommend this product?:Yes

Big improvement over last years Ultrafly

The shoe has a very nice bounce to them when running and the fit is really good. Plenty of room in the toe box kept my feet comfy. I like the way the upper is made because it hugs the foot and does not let in small stones and dirt. Last years Ultrafly let dirt in like crazy and it’s really awesome Nike fixed this. Also all the color ways are really nice looking. I really like the blue color that I bought.

MichaelM710766495

10 Jun 2026

Location

Manahawkin, NJ, US

Size you normally wear

44.5

What activity do you use this product for?

Mid-range runs (6-19 km)

What type of surface do you usually run on?

Trail

Rated 5 out of 5

How did this product fit?:True to Size

How comfortable was this product?:Very Comfortable

Would you recommend this product?:Yes

Nice Shoe

Very nice Shoe! The shoe does as it is advertised

JamesM982960062

28 May 2026

Location

Rated 1 out of 5

How did this product fit?:Runs Small

How comfortable was this product?:Uncomfortable

Would you recommend this product?:No

Poorly Designed for long distance

Fascinating how a long distance trail shoe has no room for expanding with your feet. considering the R&F budget. lets say your 40 miles in to a 100 mile race. how can these adapt to your feet like most other shoes. poor design.

Jason36279447

14 May 2026

Location

Size you normally wear

What activity do you use this product for?

Longer runs (20+ km)

What type of surface do you usually run on?

Trail

Rated 5 out of 5

How did this product fit?:True to Size

How comfortable was this product?:Very Comfortable

Would you recommend this product?:Yes

Love them

Amazing shoe on trail. It doesn't feel heavy and has a great solid platform to help with stability.

ToastyAW

29 Apr 2026

Location

Size you normally wear

45.5

What activity do you use this product for?

Longer runs (20+ km)

What type of surface do you usually run on?

Trail

Rated 2 out of 5

How did this product fit?:Runs Small

How comfortable was this product?:Uncomfortable

Would you recommend this product?:No

Super but narrow

I bought these with high expectations. Great shoe with a quality feel to them. Roomy toe box but unfortunately they are very tight in the mid-foot, avoid if you have normal to wide feet.

TreyW949928486

22 Apr 2026

Location

London, GB

Size you normally wear

What activity do you use this product for?

Mid-range runs (6-19 km)

What type of surface do you usually run on?

Trail