The one, the only, the original Moon Boot! ; Nylon shell to keep the elements out. ; Soft textile lining. ; High quality foam insulation keeps you warm and snug for all outdoor winter activities. ; Full length wraparound lacing. ; Synthetic outsole for traction and stability. Measurements: ; Heel Height: 1 1 4 in ; Weight: 1 lb 3 oz ; Circumference: 13 in ; Shaft: 14 in ; Product measurements were taken using size 35-38 (US Men's 3-6.5, US Women's 4-7.5), width Medium. Please note that measurements may vary by size.