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; bioDEWIX antimicrobial footbed insert topcover with NZYM for odor control and moisture management; 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; Comfort Range: Sub Freezing to 65F / 18C