Muck Boots Men。Men\'s Apex Zip Mid Boot Yhe Apex is a high-performance all-terrain collection built on an innovative platform for high endurance outdoor pursuits requiring a more athletic and agile boot. 100% waterproof construction coupled with breathable mesh linings to provide elite protection and moisture management. Lugged rubber outsole is designed for optimal traction in various terrain, including rocky, cold/wet ground and of course, the MUCK. 100% Waterproof 4MM Neoprene Adjustable Strap Closure for a Tailored Fit Thermo Regulating Fleece, a Revolutionary Open-Fiber Technology that Wicks Away Moisture up to 33% better than a Standard Synthetic Fleece to Maintain a Comfortable Temperature Range Dual Density Footbed with Memory Foam for Long Lasting Comfort bioDEWIX Dry Footbed Insert Topcover with NZYM for Odor Control and Moisture Management Lightweight EVA Midsole for All Day Comfort and Support Lugged Rubber Outsole for Durable All-Terrain Traction