SUPERIOR QUALITY & COMFORT: Winter boots made of EVA material (foam rubber) with a removable thick, warm insole, can be used comfortably in temperatures of up to -40°F RETRACTABLE CLEATS: Rubber outsole features 2 retractable cleats to prevent slipping on the ice THERMAL INSULATION: Inner Thinsulate layer provides heat insulation, absorbs and wicks away moisture, and polyester outer layer provides insulation HEAT-REFLECTIVE FOIL: Deflects cold and retains body heat, Temperature rating down to -40 degrees Fahrenheit CARE INSTRUCTIONS: After each use or if your footwear becomes wet, remove insoles and liners, and air-dry them separately, away from direct heat ASIN B0BL1L3N53 Brand NORFIN Color Grey Pattern Solid Seasons Winter Occasion Outdoor/Hunting Heel Type No Heel Toe Style Closed Toe Model Name Klondike 2 Style Name Ice Fishing Boot Item Weight 5 Pounds Closure Type Slip-On Style Number 16990 Sole Material Rubber Boot Form Type Snow Boot Item Type Name Snow Boot Outer Material Ethylene Vinyl Acetate (EVA) Insole Material Foam Material Fabric Rubber Shoe Height Map Above-The-Knee Boot Shaft Height Above the Knee liningdescription Fabric Shaft Circumference 17 Inches Embellishment Feature Flip out cleats Water Resistance Level Waterproof