Nike ACG Ultrafly Trail

Trail-Racing Shoes
€249.99
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4.7out 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?
92% between Uncomfortable and Very Comfortable
1-10 of 42 Reviews
Rated 5 out of 5
How did this product fit?:Runs Small
How comfortable was this product?:Average
Would you recommend this product?:Yes
brilliant
brilliant! not worn yet. but they have a potential to be my favorite pair.
GauriD468641112
21 Aug 2026
Location
GB
Size you normally wear
39.5 or under
What activity do you use this product for?
Walking
What type of surface do you usually run on?
Road
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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.
Opens Media Viewer to photo submitted by n2nie
n2nie
9 Aug 2026
Location
US
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
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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
DE
Size you normally wear
42
What activity do you use this product for?
Shorter runs (1–5 km)
What type of surface do you usually run on?
Trail
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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
GB
Size you normally wear
43
What activity do you use this product for?
Longer runs (20+ km)
What type of surface do you usually run on?
Trail
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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
FR
Size you normally wear
44
What type of surface do you usually run on?
Trail
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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.
Opens Media Viewer to photo submitted by JonasS712468065
JonasS712468065
16 Jul 2026
Location
SE
Size you normally wear
43
What activity do you use this product for?
Mid-range runs (6-19 km)
What type of surface do you usually run on?
Trail
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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
TN
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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
US
Size you normally wear
46
What activity do you use this product for?
Walking
What type of surface do you usually run on?
Trail
Was this helpful?
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.…
Opens Media Viewer to photo submitted by TomW644103353
TomW644103353
11 Jul 2026
Location
GB
Size you normally wear
44
What activity do you use this product for?
Mid-range runs (6-19 km)
What type of surface do you usually run on?
Trail
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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
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