Bogs Women's Alex Boot 100% Synthetic Rubber sole Shaft measures approximately 13 1/2" from arch Heel measures approximately 1" Boot opening measures approximately 13" around 100% Waterproof Hand-lasted natural rubber and a seamless four way stretch inner bootie Molded EVA sockliner with Aegis anti-microbial protection Non-slip, non-marking and self-cleaning deep lug outsole