Swiftwick sizing is based on your corresponding shoe size. Please refer to the size chart below. CORE STYLES SIZE CHART MEN WOMEN EURO S 3-6½ 4-7½ 34-38 M 7-9½ 8-10½ 39-42 L 10-11½ 11-13 43-45 XL 12-15 13½-16½ 46-49 Numbers above represent your corresponding shoe size.
