Sock Guy lets you enjoy a beer on the trail, without having to actually crack open a bottle. SOCK GUY SIZING Sock Guy's Stretch-to-Fit sizing system means just two adult sizes, the S/M and L/XL, provide the perfect fit and performance for the majority of men and women. All of the S/M socks will fit adult women through size 10 and men through size 9. That means most women can sport any of the S/M sock designs - ladies feel free to shop the entire site's selection of S/M socks. Likewise, for women size 10 and up, any L/XL design will be the perfect choice to Spread the LUV all over your feet! SIZE US MENS US WOMENS EUR Small / Medium 5 - 9 6 - 10 37 - 42 Large / Extra Large 9 - 13 10 - 14 43 - 48 | Sock Guy | Bevy Double Knit Mesh Bike Socks