Shaft Height: Approx. 9'' Tall. LaCrosse innovated Alpha technology by combining high quality rubber with naturally insulating neoprene resulting in a 100% waterproof, extremely durable, lightweight, comfortable and scent free boot. Neoprene upper stretches for easy on / off and creates a comfortable, snug fit. Mudlite Low outsole's ridges give excellent traction in mud, slush, and other unpleasant surfaces. Removable EVA footbed adds cushioning for all day comfort.