Boot Height: Approx. 18'' Tall. Patent-pending AeroForm technology featuring a revolutionary liquid polyurethane over neoprene construction which provides an extremely lightweight and flexible glove-like feel to the boot with highly durable, abrasion resistant and insulating protection. Uncompromised waterproof protection. Adjustable back gusset and strap with adjustable fit for various leg sizes. Armor Weld liquid rubber protective coating on the seams. 3.5MM naturally insulating neoprene.