Bogs Women's Classic High Stargazer Waterproof Boot 100% Synthetic Rubber sole Shaft measures approximately 13.5" from arch Heel measures approximately 0.5" Boot opening measures approximately 14" around 100% waterproof Durable hand-lasted rubber over a four-way stretch inner bootie Non-marking and self-cleaning outsole Aegis antimicrobial odor protection insole Comfort rated to -40 F