These are really fabulous low cut socks. I wore these with my Nike Frees (mesh style, sweater-like fitting shoe, so a thin sock is necessary) walking around Switzerland, 5-10 miles a day with no issues. I am a women's size 12 shoe, and the corresponding men's size was true to fit. They are fairly breathable, stay put, and comfortable. There is a seam along my toes, which some could find irritating, but I didn't have any problems. The heel has a little grippy gel part and they never slipped down in the back, even when wearing tall boots. I love the different colors and would purchase them again!