Nike ACG Ultrafly Trail

4.7out of 5 stars

How did this product fit?

48% between Runs Small and Runs Big

Would you recommend this product?

How comfortable was this product?

93% 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

Awesome Pair

Amazing pair of shoes. I’m a frequent runner on the road and trail (light to mild terrain). Very stable on the heel and very light. The shoes have energy return and you can feel it. It wants you to go faster. I have put in 30 miles and it feels great. Will buy another pair.

n2nie

9 Aug 2026

Location

Size you normally wear

42.5

What activity do you use this product for?

Mid-range runs (6-19 km)

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

The best!

The ACG Ultrafly performs exceptionally well off‑road. Great traction, durable materials, and a secure fit make them ideal for fast, confident runs on mixed terrain.

RuNaP313470693

1 Aug 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

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 3 out of 5

How did this product fit?:True to Size

How comfortable was this product?:Very Comfortable

Would you recommend this product?:Yes

Conforme aux attentes, mais beaucoup trop fragile…

Chaussures très confort, taille correctement, mais beaucoup trop fragile, usure très très rapide pour des chaussures de trail. Mousse de la semelle qui s’effrite, logo qui part.. regrettables pour une paire à ce prix là.

RomainDu39

16 Jul 2026

Location

Size you normally wear

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

UltraFly

Wow, what a shoe! I’ve run in the AlphaFly and Zoom Fly, but finally got around to trying the UltraFly. What a shoe—great bounce and responsiveness; the sole feels secure with excellent grip on slippery rocks and roots. Simply a fantastic trail running shoe.

JonasS712468065

16 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 5 out of 5

Super comfortable!

[This review was collected as part of a promotion.] Stylish and super comfortable. My husband loved it!

Product received for free, or reviewed as part of a prize draw/giveaway or in exchange for a discount.

Very comfortable

14 Jul 2026

Location

Originally posted at DICK'S Sporting Goods

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

Great Purchase

Perfect for a quick walk or jog. Great feel!

MichaelJ533796746

13 Jul 2026

Location

Size you normally wear

What activity do you use this product for?

Walking

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 5 out of 5

go-to for anything off-road

[This review was collected as part of a promotion.] ★★★★★
Trail grip is legit — stayed solid on loose gravel and mixed terrain without feeling like I was fighting for footing. Cushioning holds up on the longer, hillier runs and my feet aren't trashed afterward. Look tough enough to survive my questionable route choices too. New go-to for anything off-road.

Product received for free, or reviewed as part of a prize draw/giveaway or in exchange for a discount.

ComradeL

8 Jul 2026

Location

Valparaiso, IN

Originally posted at DICK'S Sporting Goods

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