100% Waterproof; 5mm CR Flex-Foam neoprene liner is 100% waterproof with exceptional comfort, flexibility, shock absorption and heat retention properties; adjusts to the contours of your foot to resist blisters and chafing; Breathable mesh lining wicks away humidity and perspiration, allowing air to travel throughout the boot; Stretch-fit comfort topline binding snugs calf to keep warmth in and cold & debris out; Extended rubber coverage for added protection; Quadruple heel, triple toe and double instep rubber add protection and durability; Hi-Vis roll down upper for comfort and safety; Wide-tracking waffle outsole for superior traction on treestand grates, rocks, and slick surfaces; bioDEWIX antimicrobial footbed insert topcover with NZYM for odor control and moisture management; Achilles reinforcement offers additional support for extended wear