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. 100% Waterproof Lock-down zipper closure system, with a waterproof zipper, the industry\'s finest and most durable technical zipper construction Velcro stretch collar for custom fit Scree collar to keep out debris and prevents chafing Breathable mesh lining facilitates air circulation to improve comfort and reduce heat and moisture Dual density comfort footbed with memory foam for long lasting cushioning Lugged rubber outsole for durable traction Pull-tab for easy on and off Estimated max calf circumference: 25cm/ 9.8in Note: These are likely a return, they appear in good unworn condition and have tags attached. May show signs of being tried on, please see pictures for further detail. Internal ID #129