I specifically ordered a small size to fit my 7.5 feet. I was delighted to find a firm that offered that size. And I was sent a small size set of socks (according to the packaging). But the socks are so large that they slide off my feet within moments of starting to walk. So, either they were mislabelled or a "small" size isn't really small. Either way, having worn a pair, I couldn't return them. So, I am now hoping that they will considerably shrink in the laundry.