Materials: Upper: Textile and TPU, Lining: Fleece and synthetic wool, breathable, waterproof membrane, Primaloft. Insole: PU and polyester (removable). Sole: Rubber (PowerGrip). Production: Vietnam. The waterproof and breathable membrane is tested for water resistance in every pair. The Barebarics PowerGrip sole features a pattern that supports your step and prevents slipping. The Primaloft technology used is among the best materials for thermal insulation. The Barebarics logo is stylishly placed on the boots. A high-quality YKK zipper ensures even easier putting on. These are the first women's snow boots from the Barebarics workshop. For maximum comfort, we recommend pairing them with cotton socks. Benefits of barefoot shoes: flexible sole, zero drop: heel and toe on the same level for good posture, wide toe box for your toes, lightweight shoes.