Over four years in development and tested over 4,000 miles, the AeroHeadÂ™ is a truly revolutionary hunting boot. It features patent-pending AeroFormÂ™ technology, a groundbreaking new construction that offers an extremely comfortable fit, with the ultimate in flexibility and durability all in a lightweight form. The shell around the neoprene core is molded with polyurethane, which is more durable, flexible, insulating and lightweight than rubber. With a thick layer of cushion underfoot, an integrated shank for support and a rugged rubber outsole, the LaCrosse AeroHeadÂ™ redefines comfort and protection in the field. 18" tall and 5.0 lbs.