MUCK BOOT WOMEN'S APEX ZIP SHORT BOOTS The Apex is a high-performance sport boot built on an innovative platform for high endurance outdoor pursuits. 100% waterproof and coupled with breathable mesh linings to provide elite protection and moisture management. The upper features a lock-down waterproof zipper closure system, a natural screen collar, and surprisingly lightweight performance for great comfort and fit. FEATURES: - 100% Waterproof - Fully lined with 5mm neoprene for flexibility - Breathable air mesh lining - Dual density insole for all-day comfort - EVA midsole for shock absorption - Built for lightweight comfort - Lugged rubber outsole for durable traction - bioDEWIX footbed insert topcover - NZYM for smell control and moisture management - Premium YKK zipper - Hand-laid natural rubber overlays - Reflective pull-tab for easy on and off - Outsole designed for light duty use on mixed terrain - Estimated boot height 19cm - Estimated max circumference 22.5cm - Measurements based on a size 38, variations may occur across sizes - Half sizes order up