... coldest of winters. Also made with a flexible, indoor rubber outsole. Upper is 100% natural suede, long lasting and ... warm, comfy and soft to endure long cold winters. Thermoplastic rubber sole outsole offers super flexibility for indoor wear. Material ... Content: suede upper, fleece upper lining, sockliner and insole, thermoplastic rubber outsole. Care: Lightly brush with a soft to medium brush ...