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. 100% Waterproof, 100% MUCKPROOF All-Terrain Lugged Rubber Outsole for Durable Traction bioDEWIX™ Dry Footbed Insert Topcover with NZYM™ for Odor Control and Moisture Management Breathable Mesh-Sandwich Fabric Lining to Improve Air Circulation Dual Density Footbed with Memory Foam for Long Lasting Comfort Lace-up Construction for a Tailored Fit Lightweight EVA Midsole for All Day Comfort and Support Pull tab for easy on/off