LaCrosse Footwear Aerohead Sport Boot 1002840 Realtree Timber Men's 13. Features a polyurethane covered neoprene core that is waterproof lightweight and flexible. Reinforced shin and Brush Tuff bi-directional material provide increased abrasion resistance. Active Fit adjustable neoprene gusset for easy on/off and a secure fit. Ideal for temperatures ranging from -10 to 60 degrees. Specifications for LaCrosse Footwear Aerohead Sport Boot 1002840: Manufacturer: LaCrosse Footwear Men's Shoe Size: 13 US Color: Realtree Timber Features of LaCrosse Footwear Aerohead Sport Boot: Built with AeroForm technology Features a polyurethane covered neoprene core Waterproof lightweight and flexible Reinforced shin and Brush Tuff bi-directional material Active Fit adjustable neoprene gusset Package Contents: LaCrosse Footwear Aerohead Sport Boot LaCrosse Footwear 340231-13: Aerohead Sport Boot 1002840 Realtree Timber Men's 13