THE NORTH FACE’s classic Thermoball mules, puffed up! The NSE Tent Mule IV is NF’s latest innovation in casual-wear that delivers maximum comfort while keeping your toes warm. Extra cushioning along the bottom adds some roll to your steps, while the durable quilted upper – which made the mules famous to begin with – returns in all its snuggly glory. From base camp lounging to newspaper-fetching adventures, the Tent Mule’s got you covered.