Nike  ACG Ultrafly Trail-Running Shoes

$155.93Compared to $260.00* Save 40%
HURRY! This item is discontinued. Shop now for best selection.

Enjoy a smooth ride with these Nike ACG trail-running shoes. ZoomX foam is springy and light. Softer full-length carbon plates lend response. And Vibram outsoles maintain grip on technical terrain.

Color: Volt Tint/Burgundy/Steam/Glass
please select a Size
Quantity
Select size for delivery dates
Shipping restrictions apply.

Members get an estimated $15.59 (10%) back on this item as a part of your annual .

Treat yourself to new gear & clothing! Join the co-op to get a $30 bonus card when you spend $50. Details
To buy,  sign in as an REI Co-op Member or join now.
Only thru 9/28
Earn 2x card rewards

Instead of 5%, earn 10% in card rewards† on REI purchases—even sale items—with your REI Co-op® Mastercard® Sep 18–28. Terms apply. Learn more

Features

  • Breathable mesh uppers are lightweight and durable
  • Uppers are made for water drainage so you don't have to worry about puddles or streams
  • Ultra-responsive ZoomX foam midsoles deliver the highest energy return from Nike with a stable feel for the trail
  • The foam is "unwrapped" in the heels for even better responsiveness
  • Tackle technical terrain with the full-length carbon fiber plate
  • Carbon-fiber plates have reduced stiffness compared to the original Ultrafly for more flexibility and better control on the trails
  • Vibram® Megagrip outsoles are designed to give you durability and enhanced grip on wet terrain

Imported.

View the Nike ACG Product LineView all Nike Men's Trail-Running Shoes

Technical Specs

Best Use

Trail Running

Trail-Running Shoe Type

Rugged-Trail

Running Shoe Cushioning

Maximum Cushion

Heel-to-Toe Drop (mm)

8.5

Heel Stack Height (mm)

37

Forefoot Stack Height (mm)

28.5

Footwear Height

Ankle

Footwear Closure

Lace-up

Upper

Breathable mesh

Midsole

ZoomX foam

Support

Full-length carbon-fiber plate

Outsole

Vibram Megagrip

Rock Plate

Yes

Weight (Pair)

1 lb. 4.2 oz. ounces

Gender

Unisex

Reviews

37 reviews with an average rating of 4.2 out of 5 stars

0% 0 of 0 reviewers recommended

Write a Review

Adding a review will require a valid email for verification

Customer Images

Eddie413908549
Rated 5.0 out of 5 stars
2 weeks ago

Worth a second and third look and then pull the trigger and buy them.

Well, everything you’ve read up about the Shoe of like when you first get the Shoe that it needs to work in. Well that is 100% accurate shoe fits great nice and comfortable a lot of cushion. Well, I put over 30 miles on them already and when I first started running the 1st mile it had a little tightness, but you know 2nd mile it kind of got a little better now I’m really starting to dig the shoes. I definitely would highly recommend them. Of course I know they’re pretty pricey, but just look at most shoes out there and the shoes living up to the hype running on terrain getting off the concrete. Need a good shoe for that and this shoe is definitely a great Shoe.

Austin944809232
Rated 5.0 out of 5 stars
6 months ago

I just ran a 50km race with 5,000 feet of elevation gain and loss wearing these shoes. I was nervous that the toe box height would be too short, but that didn’t end up being an issue at all. I didn’t get a single blister after getting them from other trail shoes. The front toe shield definitely saved my big toe more than once after slamming into some rocks. I’d recommend them for lighter mud and snow conditions, but overall they were very comfortable and fast. They fit true to size to my vaporflys. Very satisfied and an eye catching piece.

GeoffG940713778
Rated 5.0 out of 5 stars
5 months ago

Top tier trail shoe

Incredible trail shoe from Nike…well balanced shoe with a great lockdown. The zoomx is much softer than its predecessor but still offers the connection a trial runner needs from foot to ground. The sole is quite aggressive but you don’t feel it running on tarmac or light trail which is really important to me. I took just under a minute a mile of my pb for a coastal run wearing this shoe, it blew me away. The colour is a lot brighter than the pic and really is an eye catching wear…11/10.

marias390271384
Rated 5.0 out of 5 stars
7 days ago

AMAZING

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.

RudyRosas1
Rated 3.0 out of 5 stars
3 months ago

I had big expectations on this pricy shoes but am terrible disappointed. They’re not as comfortable as I thought they would be not much overall cushion leave me with knee pain at the end of my runs, I find the wild horse 10 more comfortable and more heel cushion than this more expensive shoes.

n2nie
Rated 5.0 out of 5 stars
1 month ago

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.

TomW644103353
Rated 5.0 out of 5 stars
2 months ago

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. It’s a comfortable, well cushioned everyday trail trainer as well as something you can push for a pb in. The carbon plate is not intrusive and with faster/longer strides really returns something extra. Cut a minute from my 10k pb two weeks into using them. Construction is solid, comfort is excellent. Super stable, grippy on grit and loose surfaces. I take a size 9 in regular shoes but always order half a size up in running shoes and that’s perfect for these too. My road running shoes are Vomero Plus and they too have full ZoomX but feel nothing like these at all, these are way more stable and less marshmallowy in their cushioning.

RichardAlexS133427424
Rated 5.0 out of 5 stars
5 months ago

Basically bin all your legacy trail shoes

Forward propelling with solid grip that’s fine on tarmac as blades are short. Wide front footprint like original invincible and original vaporfly rear. Great uphill. Basically bin all your legacy trail shoes.

GustavoH379107924
Location:Sacramento, CA
Rated 5.0 out of 5 stars
7 months ago

Beauty and Performance

Comfort, style and beauty. Not to mention performance! The color on these shoes is remarkable. They are stable, have good bounce to them and the grip is fantastic.

Grayday44
Rated 5.0 out of 5 stars
7 months ago

Carbon for the trails

Trail runs are my new favorite. These add stability and spring to my step when running. Highly recommend for trail running.

1 - 10 of 37 Reviews

Questions & Answers

Loading Questions...
image of a girl hiking in iceland

Need help choosing gear?

Get real advice from our experts who have been there, done that.