The Carolina Insulated Forrest 8" WP Insulated 4x4 Work Boot is a tough and rugged work boot, that works as hard as you do. It has waterproof SCUBALINER membranes to ensure full repellency, and mesh lining with 800 grams of Thinsulate insulation to keep your feet warm and dry. Waterproof SCUBALINER 800 Grams Of Thinsulate Insulation Mesh Lining Removable AG7 Polyurethane Footbed EVA Midsole Pillow Cushion Insole Electrical Hazard Rated Non-Metallic Shank Cement Construction Oil & Slip Resisting 4X4 Rubber Outsole. Size: 11.5 2E. Color: Dark Brown Copper Crazy Horse Leather/Nylon Mesh. Gender: Male. Age Group: Adult.