The Apex is a high-performance sports boot built on an innovative platform for high-endurance outdoor activities. 100% waterproof and paired with breathable mesh linings for elite protection and moisture management. The upper features a lockable waterproof zip system, a natural foam collar, and surprisingly lightweight performance for great comfort and a good fit.100% waterproofFully lined with 5mm neoprene for added flexibilityBreathable air mesh liningDouble-density insole for all-day comfortEVA midsole for cushioningDesigned for lightweight comfortDurable rubber outsole with good tractionbioDEWIX Dry antimicrobial footbed insertsNZYM for odour control and moisture managementSuperior quality YKK zipperHand-applied natural rubber overlaysReflective pull tab for easy on-and-offSole designed for lightweight use on mixed terrainEstimated boot height: 19 cm / 7.6"Estimated maximum circumference: 22.5 cm / 8.9"Measurements based on UK size 5, variations may occur between sizes