The lightweight design is E-bike certified, which tests helmets at higher speeds than traditional bike helmet certifications. Zonal KOROYD® and Mips® impact technology mean that you can focus on the trail. The VaporFitsystem lets you adjust the helmet on the fly, and the Mips® layer is integrated with the fit system for a snug, cohesive fit that feels great all day.Generous vents with internal air channels keep you cool while climbing and focused on the descent with fog-free lenses. The three-position visor accommodates sunglasses or goggles between laps or when the sun finally drops below the horizon.Product DetailsProtectionAleck Crash Detection Sensor sends alerts in the event of a crash. It's rechargeable and connects via Bluetooth to the companion Aleck phone appComplete KOROYD® coverage for lightweight, energy-absorbing and ventilated impact protectionMips® Brain Protection System reduces rotational forces caused by angled impacts to the headIntegrated skeletal structure create