Bogs Women's Plimsoll Plaid Mid-W 100% Rubber and Textile Imported Rubber sole Shaft measures approximately 9" from arch Heel measures approximately 0.75" Platform measures approximately 0.5 inches Boot opening measures approximately 14" around Durable hand lasted rubber with four way stretch inner bootie Insulated with 7 millimeter neoprene Dura fresh lining activates to fight odors Max-wick moisture wicking lining Comfort rated to -40 degrees fahrenheit or -40 degrees celsius