Whether the dog needs to go out again or the daughter wants to be cheered on while sledging, the Kamik Alborg will keep your feet warm and dry. Sealed seams keep the wet out, while the Zylextra lining creates an impenetrable barrier against the cold in winter. Warm and dry feet are guaranteed. Sealed seams: This technology makes boots waterproof and snowproof without adding weight. By specially processing the leather and nylon and then covering the seams with waterproof tape and sealant, Kamik makes your feet feel like they're in a cocoon. Safe and dry.Zylex:Kamik's patented Zylex technology is the ultimate innovation for excellent heat-moisture management. The revolutionary three-layer design wicks sweat away from the feet. At the same time, body heat stays inside and the cold stays outside. With additional reinforced seams and heel protection, durability is guaranteed. Easily removable for washing and drying. The Kamik 6mm Zylex liner keeps you warm down to -32°C, the 8mm Zylex liner up to -40°C.