Absolutely Love these socks, BUT.....If your size is in the upper range you should get the next size up. I ordered a medium because I'm a women, 9-9.5. They were a little small. I could put them on but they were tight and eventually slipped down the back. The next size up would have been perfect. Also, I have a large, "big" toe. This part of the sock could have been a little roomier....perhaps the larger size would have allowed more room here as well.