From the manufacturer

So comfortable you won't ever want to take it off. The A3 mountain bike helmet is a new standard in premium mountain bike helmets with luxurious comfort, patent-pending innovations in safety, ventilation that will you keep you cool on the longest climbs with comfort and coverage to protect on the sketchiest of descents. Highest possible score (5-STAR) from Virginia Tech helmet safety lab so you can feel confident in all conditions.

Features

- Co-molded EPP and EPS for low and high-speed Patent Pending impact energy management.

- B-Series MIPS Rotational Brain Protection system creates an optimal 360 degree fit that can maximize the safety features built into the A3.

- Advanced layering 3-piece shell

- 3-Way Magnajust visor easily accommodates goggles whether they are stowed on the upswing or on your face.

- TLD Sweat Glide System – EVA wicking foam behind the comfort liner along the front brow directs sweat away from the eyes and optics. Includes 2 spares.

- 2-piece Ionic comfort liner for anti-microbial & sweat wicking properties that is also quick to dry

- 16 vents optimally tuned with the channeling of the helmet to create the most intake and exhaust of any half shell helmet we've produced

- Premium 3D Fidlock magnetic buckle system and composite smart shear screws are made to shear away during severe impact/direct hit to visor.

- Includes helmet carrying bag, (2) spare sweat glide strips and a spare Ionic comfort liner and sticker kit

- Certification - CPSC 1203, CE EN 1078, AS NZ 2063:2008.