Comments: Unfortunately, due to the material the drop-in Lunarlon insole is made of, this shoe is not meant to be worn without socks. That being said, the Nike Free Hyperfeel Trail worked absolutely great for me. I engaged The North Face Endurance Challenge Wisconsin 50K. The shoes remained comfortable throughout the race and provided just enough cushioning to protect my feet from impact on rocks and plenty of ground feel to nimbly navigate the terrain. I stayed true to size and had no issues with lost toe nails or blisters.
From: Ghstrnnr, Chicago, Il, USA
Comments: I am an avid runner and cycle through the Saucony Peregrine, Brooks Pure Grit 1, Inov-8 F-lite 195 and NB Minimus Zero. I run a mix of trails and road and like to incorporate sprints, stairs and hill climbs when I can. I almost exclusively run without socks. I was excited for the Nike Hypefeel Trail (HFT), but upon trying them out and completing a 7 mile run I returned them. They fit well and felt light enough. Getting them on was a little bit of a challenge, but once on they feel like socks and felt secure. The cushion from the insole is amazing and I was anticipating a memorable first run. It was memorable, but not in the way my Inov-8 or Brooks were. So this is where the shoe failed me.
Hot Spots - There is a weird little piece of material on the inner seam of the ankle which rubbed against my bone. I didn't have a blister, but I felt it and thought about it every two minutes or so during the run. The ankle sock part was also just noticeable.
Breathability - I knew these would be less breathable than other shoes, but they simply weren't breathable enough. At least not for runs without socks.
Toe Box - a little small compared to the other shoes I use, ok while walking, but again noticeable while running.
Support during sprints - I did about 3.5 miles at a 8 mile pace aside from the fit and hot spot I was ok, but when I did a little speed work I immediately felt burning and rubbing on my second toe. To my joy after removing the shoes I had a nice blood blister on the tips of both of my second toes. Now I'm one of those people that has a long second toe, but I've never experienced this in the shoes mentioned above. I think it's a combination of the narrow toe box and a failure of the shoe to hold my foot back when slowing down. I could see this being a problem when running downhill on roads and especially trails.
In conclusion this is a good shoe and a great entry for Nike, I even think it looked cool (I had it in black BTW). BUT - it didn't work for my style of running or the shape of my foot. Aside from the blisters I was just too aware of the shoe while I was running. I'm sure others may love it.
From: SPS, Oakland, CA, USA