Kamik Men's Icebreakers Winter Boot Black 7 This Pair Is NOT In The Original Shoe Box Rubber upper with an adjustable 1000 denier weather collar. 100% waterproof rubber. Removable 8mm Zylex liner has a three-layer design that wicks away moisture, keeping your feet warm and dry in extreme temperatures. It is also easy to remove for quick overnight drying and is made of 97% recycled material. 11mm Zylex insole offers excellent underfoot cushioning and helps wick away moisture for drier foot environment. Kamik's TRACKER Rubber outsole is acid and oil resistant. Comfort rated for -40�F/-40�C. Measurements: Heel Height: 1 1?2". Circumference: 17 1?". Shaft: 13". Platform Height: 1?2". DOES NOT COME WITH MANUFACTURER BOX, DOES NOT INCLUDE INSIDE PACKAGING. Kamik Men's Icebreakers Winter Boot Black 7