Don’t let their low profile and plush finish fool you. The North Face NSE Tent Mule IV adult slippers are hardy and comfortable, with a toughened P.E.T. ripstop upper. Their slip-on design makes for easy on-and-off while the ThermoBallTM Eco synthetic insulation provides soft, yet breathable warmth. Whether you're wearing them for base camp, after ski or shuffling through the snow to grab the morning paper, your feet will enjoy the soft warmth and comfort they deserve with these slippers on. Upper: durable, waterproof and 100% recycled P.E.T ripstop textile Slip-on design with pull tab for easy on-and-off Synthetic fur lining Midsole: lightweight ThermoBall™ Eco synthetic insulation providing breathable, soft warmth Outsole: durable nylon-mesh base with rubber traction lugs