Fits snug and true to size. The very first generation of Arcteryx incredible trailing running model. At US8.5, it weighs at 6oz. Upper is a strong, abrasion resistant mesh. Outsole is Vibram litebase megagrip. The midsole is so light and comfortable it reminded me of lunarlon but longer lifespan. The heel has a opening designed to attach to Carabiner. 

I have too many pairs so I'm letting this pair (and another) go. I wore this everyday, and hiking and rock scrambling. 

It looks so sharp from a distance and on feet, like a Japanese sword.