POC's Kortal Helmet offers the enhanced trail and enduro protection that we rely on, with ventilation and a detachable helmet peak customizing our comfort. The Kortal Helmet fits seamlessly with POC's Ora goggles, with a unique design ensuring straps don't cover any ventilation holes. Trail and enduro helmet with light and breezy comfortBreakaway peak can be adjusted and raised on the helmetAmple ventilation maintains cooling airflowHelmet fits seamlessly with POC's Ora gogglesCertified to Dutch NTA 8776 electric bicycle standardShell MaterialpolycarbonateClaimed Weight[x-small/small] 12.7oz (360g), [medium/large] 13.4oz (380g), [x-large, xx-large] 13.4oz (440g)Manufacturer Warranty1 yearVentilation17 ventsFit Adjustment360° adjustment systemCertificationsDutch NTA 8776 electric bicycle standard, CE EN1078, Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older, AS/NZS 2063Visoryes