Xtratuf Men's 12 in Insulated Elite Legacy Boot Brown Size 11

100% Waterproof; Breathable airmesh lining; 4-way stretch mesh, high-abrasion nylon for added durability; Slip-resistant non-marking chevron outsole; Reinforced rubber layers for durability; RDR Rubber will outwear standard rubber boots in solvents, caustics, hydrocarbons, oils, fats, and acids; 5mm neoprene bootie adds warmth and comfort; Recommended temperature rating to -20degF; Shaft Circumference is 15.5 inches and was taken from a size 9. There may be slight measurement variations based on size; Recommend half sizes order up