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. 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 antimicrobial footbed insert topcover. Nzym for odour control and moisture management. Premium ykk zipper