OmniTrax® 3.0 Interchangeable Sole System adapts your traction to meet changing weather conditions * Included 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 * 400 grams of 3MTM ThinsulateTM 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