What Our Gearhead® Experts Are Saying: "These slippers are warm, light, and unbelievably easy to slip on—even when little ones won’t sit still. The traction outsole grips well on wood floors and snowy porches, and the ThermoBall insulation keeps toes toasty without overheating. If you're looking for a dependable cold-season slipper that survives spills, snow, and nonstop movement, this is the one."We reach for the ThermoBall Traction Mule II Slipper from The North Face whenever cold floors and winter mornings collide. Right from the first step, the lightweight ThermoBall Eco insulation surrounds tiny toes with reliable warmth, making these an easy go-to for preschool runs, cabin weekends, and everyday lounging. Built with recycled materials from top to bottom, the slipper’s recycled PET upper holds up to active indoor play, while the recycled rubber outsole grips slick hallways and frosty decks. A soft, cozy interior invites little ones to slip them on all by themselves, and the low-profile design keeps the fit secure without slowing them down. From chilly living rooms to quick trips outside, these slippers keep comfort and traction dialed all season.