Muck Men。Designed for athletic hunters and outdoor enthusiasts of all types to move fast and with confidence on tough terrain. Apex is built with an innovative construction for high-endurance treks that require a more athletic and agile boot while still providing comfort and waterproof protection. 100% waterproof construction coupled with breathable mesh linings to provide elite protection and moisture management. Surprisingly light-weight performance for great all-day comfort and fit. Equally at home on loose rocky terrain, cold/wet ground and of course, the MUCK. Pull tab for easy on/off bioDEWIX™ Dry Footbed Insert Topcover with NZYM™ for Odor Control and Moisture Management Velcro stretch collar for custom fit EVA Midsole for Lightweight Comfort and Shock Absorption Breathable Mesh Lining Upper Features a Lock-Down Zipper Closure System, with a Waterproof YKK® Zipper, the Industry’s Finest and Most Durable Technical Zipper Construction 100% Waterproof, 100% MUCKPROOF Lugged Rubber Outsole