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Highly Rated
Nike ACG Ultrafly Trail-Racing Shoes - Spruce Fog/Sea Glass/Black Spruce

Nike ACG Ultrafly Trail

Trail-Racing Shoes

$350
Spruce Fog/Sea Glass/Black Spruce
Light Crimson/Summit White/Summit White/Pure Platinum
Racer Blue/Vivid Purple/Purple Dynasty
Select SizeSize Guide
  • Colour Shown: Spruce Fog/Sea Glass/Black Spruce
  • Style: HF5668-300

Nike ACG Ultrafly Trail

$350

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: Spruce Fog/Sea Glass/Black Spruce
  • Style: HF5668-300

Size & Fit

    • Nike members enjoy free returns (exclusions apply)
  • Size Guide

Free Delivery and Returns

Nike Members

Free standard delivery on orders over $80

Express delivery $14.95

Free standard returns (exclusions apply)

 

Nike Guests

Standard delivery $9.95

Express delivery $14.95

Standard returns $9.95 (exclusions apply)

 

Returns Policy Delivery Information

 

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Reviews (33)

4.5 stars

  • AMAZING

    marias390271384

    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.

  • disappointed

    Mochammad4e6118e5008f4a449e5ecec108742041

    The quality of the goods does not meet expectations because the brake adhesive is lacking, but a lot can be seen on each side of the edge, I can't return it because I need it to use and don't know what else to say.

  • brilliant

    GauriD468641112

    brilliant! not worn yet. but they have a potential to be my favorite pair.

Nike ACG Ultrafly Trail-Racing Shoes

Nike ACG Ultrafly Trail

$350

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

Powered By

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.

hero
Caleb Olson

"It's been my go-to, do-it-all racing shoe that has put me on top of the podium at some of my biggest races".

Caleb Olson

2025 Western States champion

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