Nike ACG Ultrafly Trail

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.

I'm not a trail runner. I will not be running in these. As a casual wearer, I love these shoes because they solve all of my issues with the Original ACG Mountainfly. First, the Ultrafly Trail dispenses with the rubber toe cap of the Mountainfly, which results in way more toe freedom in exchange for reduced protection. Second, the Ultrafly Trail has a slightly wider toe box than the Mountainfly, which allows my toes to spread more comfortably. Third, the squared off edges of the Ultrafly Trail's midsole/outsole offer greater stability and control of the bouncy midsole than the Mountainfly's rounded edges. Finally, the Vibram outsole is a clear upgrade over the Mountainfly's tread. As for the bounce? I am elated that the bounce feels exactly the same as the ACG Mountainfly. The bounce of the foam, and the stiffness of the carbon fiber plate are sublime. I haven't felt a shoe like this since the ACG Mountainfly. I could take or leave the looks, but the feel is unmatched. This is the update to the Mountainfly I've been waiting for.

My first run with these today. Ran a 3 mile trail single track loop that I typically run 4 times/week. New shoes always give me a placebo effect but my perceived effort was less than previous runs and I was 15 seconds per mile faster in these ACGs. They felt awesome out of the box on this non-technical single track. The price is a little steep for a pair of trail runners but they are plated, lightweight and well built. I was impressed. Nike treated me great. This was my second pair. I had one run in my previous pair and the Zoom X foam had a tear near the heal. My first run out was on a technical and rocky trail so not sure if I hooked a rock or something but they took my return and sent me a new pair very quickly and easily. I will use these ACGs on smoother single track and save some more robust shoes for rockier technical trails. Can't wait to get some more miles on them!