The Specialized Ambush Mountain Bike Helmet with ANGi gives your head extra coverage without having to wear a full face helmet. So you can comfortably pedal up the hills & then go full throttle downhill. The Ambush ANGi is Specialized’s top of the line trail helmet & incorporates two of the latest bits of helmet tech, MIPS & ANGi. MIPS (Multi-directional Impact Protection System) is designed to protect your head from glancing blows. MIPS allows your helmet to move in a controlled way on impact to absorb some of the force of a crash, reducing the shock to your brain. If you are unlucky enough to have a bad crash your ANGi sensor will detect it & send an alert with your GPS coordinates to your emergency contacts. The Ambush Helmet also has the best of more traditional helmet tech including Energy Optimized Multi-Density EPS foam that manages the energy from impacts, & an Aramid-Reinforced Skeleton that provides extra structure. To make sure you get a secure fit the Ambush comes with the Specialized Mindset 360 fit system with five height positions & an integrated dial for on-the-fly tinkering. The Ambush also keeps you cool with the 4th Dimension Cooling Systems massive vents & exhaust ports, so you dont have to worry about overheating—even on the hottest days. The Specialized Ambush with ANGi is a top of the line mountain bike trail helmet for riders who want maximum protection. Features Patented aramid-reinforced skeleton provides internal EPS support. Patented Energy Optimized Multi-Density EPS construction helps to manage impact energy. Mindset 360 fit system provides a secure, customizable fit with 360-degree tension adjustment, five height positions, & an integrated dial for easy, on-the-fly adjustments. Micro indexing visor allows for a wide range of fast, secure on-trail adjustments, as well as convenient goggle stowage. 4th Dimension Cooling System with massive vents, internal Cross-Channels, & aligned exhaust ports increases airflow to keep you cool. Low profile in-moulded shell with smooth, snag-free exterior shape. Extended coverage for added protection & durability. Lightweight, ultra quick-drying liner features a Gutter Action Brow that channels moisture away from eyes. Tri-Fix web splitter for enhanced comfort & ease of strap adjustments. MIPS-equipped. Integrated ANGI crash sensor.