Easy on/off; Lightweight & durable steel spikes * Fits men"s & women"s shoes * Reduces risk of injury * Confidently walk on ice, snow & mud * SIZE CHART: Small: Women"s 5; Men"s 3.5; Medium: Women"s 5.5-8; Men"s 4-7 Large: Women"s 8.5-12; Men"s 7.5-10.5 XL: Women"s 12+; Men"s 11-16