The Altitude is designed to blend the performance features of an outdoor cold weather boot into a stylish casual use boot perfect for days off the mountain. Featuring waterproof American leather trim, a sturdy YKK zippered closure, flexible lightweight EVA mid-sole and 200-gram Primaloft insulation for superior warmth. Features: Antimicrobial footbed. Faux Fur Lining. YKK Zipper Closure. Slip-Resistant Outsole. Waterproof Technology with American Leather Trim. Lightweight & Flexible EVA Midsole. Vibration Absorbing Rebound Technology. 200g Primaloft Lining for Superior Warmth. SP10026-BROWN SPICE. Materials: . About Spyder: Founded in 1978 in Boulder Colorado, Spyder is one of the world’s most recognizable and credible outdoor sportswear brands. Focused on enhancing the ski experience both on and off the mountain, Spyder prides itself on its advanced technical composition and style.