Exped Bivy Booty - The Ultimate Overshoe for Base Camp Slippers, Waterproof and Pairs Perfectly Down Sock Slipper, Unisex (S, M, L, XL)

Sole material: 420 D environmentally friendly thermoplastic polyurethane (TPU), anti-slip, OEKO-TEX® 100 certified, PFC-freeOuter material: Ethylene Vinyl Acetate (EVA)Closure type: Lace upWater resistance level: WaterproofThe special heel cap, like the insole, is made of durable EVA foam and offers excellent insulationHigh sole rand offers abrasion resistance1 cm thick EVA insole keeps feet toasty and cushionedIntegrated draw cords work well in snow and ice, or in the dark2 elastic loops included for storage Perfect for everyday use. finest materials and excellent craftsmanship ensure long-lasting durability.