New for 2009, the Craft proCOOL Compression Sock. Worn by CSC/Saxo Bank and perfect for pre/post race travel, endurance training and racing. Compression fit over calves reduce muscle vibrations, focus power delivery and aid in muscle recovery Channel stitched structure allows warm air to circulate keeping your foot and lower leg cool and dry Wide Lycra cuffs ensure a secure and comfortable fit just below the knee Lycra ribbed arch support to keep the sock firmly in place Perfect for pre/post race travel, endurance training and racing US Men Women XS 3 - 4.5 4.5 - 6 S 5 - 7 6.5 - 8.5 M 8 - 9 9 - 10.5 L 10 - 12 11 - up XL 12.5 - 14