Nike ACG Ultrafly Trail
Ultralight foam and enhanced grip fuel your trail speed.
The Ultrafly Trail takes what you love about the original and refines it, so you can go the distance. The springy ZoomX foam is more responsive and the full-length carbon plate is softer for a smooth ride. The outsole helps reduce weight while maintaining enhanced grip as the miles pile up.
Ultra-responsive ZoomX foam midsole delivers Nike's highest energy return with a stable feel for the trail. The foam is “unwrapped” in the heel for even better responsiveness.
Don’t worry about puddles or streams—the upper is made for water drainage. It’s also lightweight, durable and breathable.
Tackle technical terrain with the full-length carbon fiber plate. We reduced the stiffness compared to the original Ultrafly for better control on the trails.
Go the distance with Vibram® Megagrip outsole. It’s designed to give you durability and enhanced grip on wet terrain.
4.5 Stars
Big improvement over last years Ultrafly
MichaelM710766495
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.
Nice Shoe
JamesM982960062
Very nice Shoe! The shoe does as it is advertised
Speedy yet none forgiving
IanS122928791
Raced in the first version of the Ultrafly's and thought these would have been an improvement to them. I'll give it to Nike that these are a super snappy shoe with a great upper fit. The Vibram outsole is grippy as well -- no issues there. The main issue I'm having with them is the midsole is even stiffer than the first version! I've gotten 30 miles in the shoes so far and am hoping that it's just a break-in issue, but my feet are so sore after running in these that I cannot fathom doing any ultramarathon distance race in them, especially on technical terrain.
Nike ACG Ultrafly Trail
Engineered For
Terrain
Cushion
Shoe Weight
Heel-to-Toe Drop
Shoe Weight
287g/10.1oz (Men's US 10)
Heel-to-Toe Drop
8.5mm
Powered By
ZoomX Foam, Carbon Fiber Flyplate & Vibram® Megagrip
Ultra-responsive ZoomX foam midsole delivers Nike's highest energy return with a stable feel for the trail.
Don’t worry about puddles or streams—the upper is made for water drainage. It’s also lightweight, durable and breathable.
Tackle technical terrain with the full-length carbon fiber plate. We reduced the stiffness compared to the original Ultrafly for better control on the trails.
Go the distance with Vibram® Megagrip outsole. It’s designed to give you durability and enhanced grip on wet terrain.
Caleb Olson
2025 Western States Champion