The Lacrosse AeroHead Sport 16" Optifade Elevated II 7mm Insulated Hunting Boot is a complete game changer when it comes to rubber hunting boots. Instead of heavy rubber, the AeroHead Sport uses a lightweight polyurethane shell around foot that is extremely durable, insulating, and waterproof. The upper section of the boot is produced from flexible neoprene and wrapped in Brush Tuff, a blend of spandex and Lycra for extra protection. The Aero Sport Outsole is designed to keep you fast on your feet with non-loading tread that also keeps you steady on uneven terrain. Lacrosse AeroHead Sport 16" Optifade Elevated II 7mm Insulated Hunting Boots are well suited for temperatures ranging from -50%deg; F to 40° F. Features of the Lacrosse AeroHead Sport BootAeroForm Shell is made from a lightweight polyurethane that’s lightweight and flexible but won’t crack or tear Brush Tuff Layer combines spandex and Lycra over neoprene for enhanced durability on the upper section of bootFlexible Neoprene provides protection against moisture, cold, and wind but can be rolled down for enhanced comfortComfort Liner wicks moisture to keep your feet dry and comfortableNeoprene Gusset accommodates most calf sizes and makes it easier to slide the boot on and off Lacrosse AeroHead Sport 16" Optifade Elevated II 7mm Insulated Hunting Boots 340229, 10