I normally wear size 10 in women's shoes and have trouble finding a comfortable fit due to very wide feet. I bought size 8.5 in these because the women's styles were sold out. Compared to an average women's 10 I find the men's 8.5 length slightly shorter and the width equal to slightly wider for my foot. The inside is quite comfortable to my bare feet. Everything feels soft and I walked around the house for an hour and can't identify any spots that seem like they would rub. The insole comes out of the shoe and is composed of a thin layer of material over a tiny grid pad with holes I presume are to help drain water. My feet do not notice the grid pattern in the insole when I was walking around the house. The sole of the shoe itself has a lot of tiny holes for water to drain. The cut around the ankle is quite low and there should not be anything near the ankle bones to rub while walking over uneven rocky terrain. The shoe definitely looks less bulky on my foot than most standard hiking shoes.