These socks were exactly what I was needing, they were thin, cut low, and had a silicone strip which kept the sock from slipping off my heel...BUT they were too short. There was no size chart listed for the socks, but based on previously asked Q/A I saw that size Medium fit up to a size 10 Womens shoe. I measure/wear size 9.5 and the sock was killing my toes. Im returning both sets and reordered the black set in Large, which was the only color available in the size I need.