This waterproof winter boot with a breathable nylon shell and high-loft insulation combines the brand's comprehensive tech with a bold platform base. The IceBite® Grip provides greater slip resistance on ice than conventional rubber, while the Polar Rubber™ outsole offers maximized grip and durability on slick surfaces. Waterproof: protects against rain, puddles and slush to keep feet dry in wet conditions Lacing system with adjustable toggle closure Thermaplush™ soft, next-to-foot wicking layer for warmth Form-fitting B-Tek™ Foam lining for comfort Ultralite high-rebound midsole for added cushioning Proven Hex-Flex® outsole design for slip resistance Lined, with B-Tek™ Heat lightweight, four-channel hollow-fiber insulation for high-loft breathability in a broad range of temperatures Textile upper and lining/rubber and synthetic sole Imported