As the original off-grid slip-ons, these warm, durable 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, apres relaxation or kicking-back at camp. Features and Specs Collapsible Heel With Elastic Side Panels For Easy On/Off Oso Fleece Collar Lining For Added Comfort Sole Unit: Outsole Made With Up To 20% Recycled Rubber Thermoball(TM) 100% Recycled Polyester Insulation Helps Keep Feet Warm Even When Wet 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 Approx Weight (A 1/2 pair) 7.1 oz (201 g)