Wildlings brand barefoot shoes in style "Nebula." Size W9/M8 (EU 41) worn about 4 or 5 times on some trails. Breathable stretchy fabric. You can feel the whole ground it's like wearing socks but more protection from rocks. Honestly I have better traction with these barefoot shoes than I do in my tennis shoes. They were just too big for me and I had to order a smaller size but I already wore them out in the elements. I'm usually a 9 but these fit big on me so I'd say they fit more like a 10. Their website has a fit guide to see your size and if you're in the market to try a pair out without paying full price these are your chance! Some white adhesive residue on the inside of left shoe from a spacer I had in to try to make them work (in pic) but it isn't sticky.