TRACTION // Non-Marking Kling-On high friction rubber outsole delivers incredible grip on dry and wet surfaces. WATERPROOF // 6 inches of 100% waterproof vulcanized rubber construction keeps feet bone dry. INSULATION // 3.5 neoprene combined with our warm and cozy fleece lining, provide slipper-like warmth and comfort. COMFORT // Cush-Tech premium EVA midsole offers uber-cushy underfoot comfort and support. ON/OFF // Stretch neoprene cuff allows for easy slip-on, while the enhanced heel-kick feature allows for easy, hands-free removal. TEMP RATING // Comfort rated down to -20 Degrees Fahrenheit. SIZES // Men’s 8-15 & Women’s 6-11 (Whole Sizes Only) COZY, FLEECE-LINED COMFORT WITH 100% WATERPROOF, ALL-GRIP, NO-SLIP PERFORMANCE.