SKULL AND BONES Collection Featuring skull embroidery on one sock, bones embroidery on the other. Patented grip designed to provide excellent traction. Extra silicon on the high contact areas: the ball and heel of the foot. Arebesk signature wash bag included with each pair- doubles as carrying bag and helps preserve sock and silicone longer. Free shipping on all orders $35 or over. Does not apply to international or overnight orders. SIZE CHART Large XLarge U.S. Men's Shoe 9.5-11.5 12-13 E.U. Men's Shoe 42.5-45.5 46-48 *Please refer to the size chart above to determine your correct sock size.