Joules Women's Burlingham Rain Boot 100% Rubber Imported Synthetic sole Shaft measures approximately 15.5" from arch Heel measures approximately 1" Platform measures approximately 0.25 inches Boot opening measures approximately 15" around Glossy rain boot featuring exposed back zipper and raised gold-tone logo at front;Textured finish at midsole and opening;Traction outsole;White wax film from "blooming" may appear on the surface of the rubber boots. Blooming is caused when the boots are exposed to extreme temperatures or temperature swings and the wax helps prevent the rubber from weathering. It can be wiped off with a damp cloth.