Bogs Women's Classic Mid Ambrosia Waterproof Boot 100% Rubber Rubber sole Shaft measures approximately 8 from arch Boot opening measures approximately 13 around New lower profile Classic, 100% waterproofDurable hand-lasted rubber over a four way stretch inner bootie 7mm Bogs Neo-Tech insulation circulates airNon-marking, self-cleaning outsole for dependable traction Contoured removable insoleAegis antimicrobial protection insole Small lug outsole with latex sponge cushioning Easy-on pull handles