Technical performance boot that excels during active multi-sport winter adventures. OmniTrax 3.0 Interchangeable Sole System adapts your traction to meet changing weather conditions. Includes two outsoles; SnowTrac Winter Rubber Lug and IceTrac Studded Rubber Lug with carbide studs (32 studs/pair). 100% waterproof construction includes waterproof/breathable bootie, and waterproof leathers, webbing and stitching to keep boot interior perfectly dry. For extreme conditions, IceTrax Extreme spiked sole sold separately. 400 grams of 3M Thinsulate insulation, includes underfoot placement for warmth during active outdoor adventures such as snowshoeing and hiking. Molded toe and heel cap provides support and protection without sacrificing flexibility. 3 lbs, 7oz. per pair.