Bogs Women's Sidney Solid Mid-W 100% Fabric/Rubber Imported Rubber sole Shaft measures approximately 7.25" from arch Heel measures approximately 1" Platform measures approximately 0.5" Boot opening measures approximately 11.25" around 100% waterproof Molded EVA with DuraFresh footbed 5mm Neo-Tech Lite insulation Rebound technology in outsole Rubber outsole