Friday Sock Co. socks are unisex. Currently we have a One-size fits most (Mid-calf), and Small (Crew). Clicking on the product will populate the sizing for each pair. Sizing refers to shoe-size. 

One-size Fits Most (Mid-calf) 
Men's 7 - 12 
Women's 8 - 13 
Note: Our socks will shrink down a size in the dryer but will stretch back out if you need them to. 
Small (Crew) 
Women's 5 - 10 
Men's 4 - 7 
Boy's/Girl's 3 - 5