Muck Apex Mid Zip Ankle Boots are designed for athletic hunters and outdoor enthusiasts of all types to move fast and with confidence on tough terrain. Apex boots are built with an innovative construction for high endurance treks that require a more athletic and agile boot while still providing comfort and waterproof protection. These boots have a 100% waterproof construction coupled with breathable mesh linings to provide elite protection and moisture management. They provide surprisingly light weight performance for great all day comfort and fit and are equally at home on loose rocky terrain, cold/wet ground and of course, in the muck. Muck Apex Mid Zip Ankle Boots feature:100% Waterproof5mm 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 chafingLock-down zipper closure system, with a waterproof zipper, the industry's finest and most durable technical zipper constructionVelcro stretch collar for custom fitScree collar to keep out debris and prevent chafingBreathable mesh lining facilitates air circulation to improve comfort and reduce heat and moistureDual density comfort footbed with memory foam for long lasting cushioningEVA midsole for lightweight comfort and shock absorptionLugged rubber outsole for durable tractionbioDEWIX antimicrobial footbed insert topcover with NZYM for odor control and moisture managementPull-tab for easy on and offWeight is only 2.65 lbs.Height: 7.9 in.Comfort Range: Sub Freezing to 65°F