Endura MT500 Mountain Cycling Booty Overshoe II Synthetic Endura MT500 Mountain Cycling Overshoe sizing is unique and are expected to run a full-size small; Overshoe fits snugly and should be rolled on over shoes to ensure proper fit and protection. Rear zip with snapdown puller and Velcro heel tab to ensure snug fit Moulder rubber toe cap with ridged underside to help when climbing steep and/or muddy slopes Welded center seam for smooth finish and improved water protection; Opening is designed for mountain bike cleats Tough nylon faced neoprene upper to keep the elements out and feet dry