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Kamik's Classic collection is just that - a boot that has been relied on for generations. The Kamik Acadia Winter Boot is no exception. With traditional styling, waterproof protection and easy on-and-off design, the Kamik Acadia Classic is destined to be a classic for years to come.Waterproof suede upper.Seam sealed waterproof protection.Removable 200B Thinsulate foam liner - a unique microfiber developed by 3M. Constructed of microfibers that trap air, retain body heat and deliver warmth two times greater than down and other polyester insulations.Moisture wicking lining helps keep feet warm and dry.Fleece snow collar and gusseted tongue that helps keep debris out.Waterproof and flexible rubber shell.Kamik's SNOWGRIP rubber outsole for traction in adverse conditions.Comfort rated to -40F.Height: 9 inches.Weight: 2 lbs. 8 oz. (pair).