Very light weight, yet rugged with good support. Handles rocky, steep trails quite well. Drains and dries quickly after crossing creeks. The previous U104's rubbed the edge of my big toes and caused blisters, these do not have that issue. Highly recommended.

I have been trail-running for 25-years from Arizona Sonoran Deserts to High Alpine Forests. I have worn ASICS, Adidas, Nike, Brooks, New Balance, and Montrail trail shoes; never have I had a shoe that fits so well, provides so much protection, traction, and comfort. I would wear these for everyday activities except I might not look so forward to sliding these on for my trailruns. Best pure trail shoe ever.

Very comfy shoe and fits well for those who have a mid to low arch.

this shoe feels more like a boot then a running shoe. Also, it doesnt seem to vent well and it is very hot.

Comfortable show with good support. Lightweight and true to size. Felt a little tight for the first day, but streched and fit great after that. The laces are a little short and hard to tie.

Very nice shoe lots of traction and very comfortable. Sizing is very close.

I purchased these great shoes while working in Kabul...as an everyday shoe, they performed wonderously during weight and cardio workouts, and also while conducting range operations in the most rugged of environments...i have purchased a second pair at the ready for when these are worn out.

it's very comfrotable.i buy two pair of it.it worth doing~

Very comfortable! I'm an ER physician and not a hiker much anymore, but still buy TNF products to remind me of the days in college when I could go hiking before children, career... I have high arches and pretty narrow feet; I can wear them comfortably during a 12-hour shift on my feet, an honor priorly only held by my Birkenstocks. I also can do my treadmill runs at the Y and my feet feel great!

I have had more than one incarnation of the Ultra series and keep coming back. It fits well on my slightly wide foot and is very comfortable. It also provides good traction for the gravel and scree of the rocky mountains. In this dry area I prefer a shoe that is not goretex. Very good and versatile shoe.

very comfortable...a very balanced shoe...i sometimes have the problem of getting too narrow of a shoe and feel like i am doing a balancing act when walking with the shoe, constantly turning my ankle, etc. this shoe makes you want to do squats or something! i also like the laces and how far they go back and forth...its unique.

Best shoe I've ever had. They are comfortable straight out of the box.