TOPTIE Shoe Covers protect your feet from the wind and your shoes from rain and road gunk. Made of 100% Lycra - allow you to pedal away, regardless of what the weather is. The cover extends above your ankles and are sealed off in the back with zipper closures, further protecting your feet and lower legs from the elements. Non-slip rubber band at the opening provides an uninterrupted interface between your cleats and pedals. US Size: * M: Fits Shoe Size 6.5-7. * L: Fits Shoe Size 8-8.5. * XL: Fits Shoe Size 10-10.5.