Specialized's Ambush MIPS Helmet with ANGI technology was created for ripping down the trail without needing to worry about your helmet protecting you in a crash. Now you don't need to be stuck wearing a full-face on every trail ride, because the Ambush is one of the lightest & most ventilated extended coverage helmet available. Starting with protection, the Ambush boasts a significant amount of extended coverage, Energy Optimized Multi-Density EPS foam that manages the energy from impacts effectively, & a Aramid-Reinforced Skeleton that provides extra structure for the foam. Even with the added protection, though, it fits comfortably with our low profile & fully integrated Mindset 360 fit system. With its five height positions, this system provides unmatched adjustment, while an integrated dial allows for on-the-fly tinkering. The Ambush also keeps you cool with the Specialized 4th Dimension Cooling System's massive vents & exhaust ports, so you don't have to worry about overheating—even on the hottest days. The helmet also features a micro-indexing visor that quickly adjusts positions & has plenty of room for goggle storage. Combined, these features put the Ambush well in front of the competition. The new ANGi Crash Sensor gives you & your loved ones peace of mind like never before. When combined with Specialized's i OS or Android app, the sensor will detect a crash & send a text message to specified contacts in your phone. It also syncs with our app & Srava to provide GPS-based activity tracking.