Adjustable Gusset Style - customize to fit larger calves for optimum comfort and protection with our expandable gusset and adjustable locking strap. Extra room also accommodates layers of clothing being tucked into the boot. Realtree Edge Camouflage 100% WATERPROOF - Designed and built to be 100% waterproof from top to bottom 5 mm DENSOPRENE FOAM INSULATED BOOTIE - Keeps out the cold & wet - keeps in the warm & dry DENSOPRENE foam is a super dense neoprene material that keeps the cold/wet out and the warm/dry in. This waterproof and self-insulating foam is naturally lightweight, buoyant and very comfortable - your foot and lower leg stay warm and protected in cold and wet conditions. HYDROKOTE WATER-REPELLENT - No more soggy boots. Water rolls off and dries in seconds HYDROKOTE water repellent is featured on all Dryshod footwear products. The textile cover on the entire bootie is treated with a nano-scale hydrophobic coating that repels water and mud on contact. This keeps the textile exterior surface of the boot from icing up in freezing temps and from retaining water in the fibers in wet conditions. With HYDROKOTE, soggy boots are a thing of the past. 4-WAY STRETCH BREATHABLE AIRMESH LINING - Moves the air to keep your feet dry and comfortable Structured-airmesh has a top layer and a bottom layer that is held apart by thousands of tiny vertical fibers. As you walk, air is pushed and circulated through the vertical fibers allowing the skin to breath thus keeping the boot dry and humidity-free within the boot’s specified comfort range. Dryshod footwear linings are nonabrasive and hypoallergenic.