Nike ACG Ultrafly Trail

Trail-Racing Shoes

$330

Highly Rated

Light Crimson/Summit White/Summit White/Pure Platinum

Colour Shown: Volt Tint/Steam/Sea Glass/Burgundy Ash
Style: HF5668-700

Nike ACG Ultrafly Trail

$330

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.

ZoomX foam

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.

Breathable Mesh Upper

Don't worry about puddles or streams—the upper is made for water drainage. It's also lightweight, durable and breathable.

More flexibility

Tackle technical terrain with the full-length carbon-fibre plate. We reduced the stiffness compared to the original Ultrafly for better control on the trails.

Enhanced grip

Go the distance with Vibram® Megagrip outsole. It's designed to give you durability and enhanced grip on wet terrain.

Product Details

Weight: approx. 287g (men's UK 9)
Heel-to-toe drop: 8.5mm
Colour Shown: Volt Tint/Steam/Sea Glass/Burgundy Ash
Style: HF5668-700

Free Delivery and Returns

Free shipping on orders +$100 and 30-day free returns for Nike Members.
Learn More.

Reviews (35)

4.6 stars

AMAZING
marias390271384Sep 16, 2026
I bought because my doctor recommended them, after so many problems with my feet (stress fracture 5 metatarsal and arthritis in my big toe, the pain is insupportable) The shoes are so light weight and very comfortable, I am using Nike acg zegama trail, for my longest run, and the nike ultrafly for short run, no more than 3 or 4 miles, because the drop for me is too high 8.5 and I need more time to adapt. I regularly use running shoes with 4 mm drop, and it is perfect for me, if nike can make nike ultrafly with 4mm drop, for me will be perfect, but I recommended this product.
davy michellonE252441066Sep 07, 2026
Incroyable chaussures ! Dynamique, confortable j’adore 👍🏻
brilliant
GauriD468641112Aug 21, 2026
brilliant! not worn yet. but they have a potential to be my favorite pair.

See Reviews

Lightweight speed, grip and energy return, come hell or high water.

Engineered For

Trail Running & Racing

Terrain

Less to Highly Technical

Cushioning

Responsive

Shoe Weight

Approx. 287g (Men's UK 9)

Heel-to-Toe Drop

8.5mm

Tech Specs

Shoe Weight

Approx. 287g (Men's UK 9)

Heel-to-Toe Drop

8.5mm

ZoomX Foam, Carbon-Fibre Flyplate & Vibram® Megagrip

What's New?

Our newest iteration of ZoomX foam delivers durability, softness and responsiveness made for trail running.
The full-length carbon-fibre plate has reduced stiffness compared to the original Ultrafly.
Vibram® Megagrip outsole offers exceptional traction on the trail with less weight. Strategically placed lugs add grip for uphill and downhill racing.

Features That Perform

ZoomX Foam
Ultra-responsive ZoomX foam midsole delivers Nike's highest energy return with a stable feel for the trail.
Breathable Mesh Upper
Don't worry about puddles or streams—the upper is made for water drainage. It's also lightweight, durable and breathable.
More Flexibility
Tackle technical terrain with the full-length carbon-fibre plate. We've reduced the stiffness compared to the original Ultrafly for better control on the trails.
Enhanced Grip
Go the distance with the Vibram® Megagrip outsole. It's designed to give you durability and enhanced grip on wet terrain.