Rubber is naturally waterproof and with our proven formulas our rubber remains durable and waterproof year after year. Adjustable top Strap creates a customizable for a secure fit around your calf. Our revolutionary ankle fit ensures a secure and comfortable fit around your ankles while gripping the top of your foot and locking your heel in place. WEIGHT - 4.5 lbs per pair HEIGHT - 18" INSULATION - Foam Insulated COLOR - Green TRACTION - Best for All-Terrain Slip Resistant TRACTION - Slip Resistant FOOTBED - Removable EVA Footbed SHANK - Fiberglass Shank COMFORT ZONE - Mild: -20 to 60F