|S||4 - 6.5||5 - 8||39 - Below|
|M||7 - 9.5||8.5 - 11||40 - 42|
|L||10 - 12.5||11.5 - 14||43 - 45|
|XL||13 - Up||14.5 - Up||46 - Up|
Awesome! Wore them for a triathlon and loved them. I wish you sold them in packs of 3!
Wore these socks for a 18 mile run and they were comfortable, kept my feet dry and wore well the whole time.