Flexible leather wraps the insulated upper of this adventure-ready Chelsea boot that provides water-resistant coverage and powerful grip on icy surfaces. Waterproof: protects against rain, puddles and slush to keep feet dry in wet conditions 7 1/2" shaft B-Tek?Dry waterproof, breathable technology Thermawick lining provides thermal regulation and moisture management B-Tek?Heat lightweight, 4-channel hollow-fiber insulation for high-loft breathability in a broad range of temperatures Removable, cushioned insole with arch support Polar Rubber?outsole with IceBite?Grip compound engineered for added traction on ice Leather upper/synthetic lining/rubber sole Imported