Post-expedition comfort should never be an afterthought. That\'s why we created the THERMOBALL™ Traction Booties. These versatile shoes were born at base camp but adapted for everyday life. Lightweight and packable for easy transportation. Insulated and fleece-lined for unrivaled comfort and warmth. These are the all-in-one solution for running errands, après relaxation or kicking-back at camp. Upper: Upper made with 100% recycled P.E.T. ripstop with a non-PFC durable water-repellent (non-PFC DWR) finish for added water repellency Easy on/off design THERMOBALL™ 100% recycled polyester insulation helps keep teet warm even when wet Sole Unit: Outsole made with up to 20% recycled rubber