Troy Lee Designs SE4 Polyacrylite Mono Helmet

The Troy Lee SE4 Polyacrylite Mono Helmet comes with Mips® safety system How does the Mips® safety system work? The brain is typically more sensitive to rotational motion than linear motion because it has shear properties similar to water or gel. When different parts of the brain move relative to each other because of rotational motion, the tissues can stretch, which can cause concussions or other brain injuries. Rotational motion is a common cause of concussions and more severe brain injury in oblique hits to the head. The Mips® safety system consists of a low friction layer mounted inside the helmet. In a crash, the low friction layer is designed to move slightly inside the helmet to help redirect forces away from the head. This is intended to help reduce the risk of brain injury. , incorporating brain rotational protection. This lightweight helmet includes 16 intake ports to channel cool air around and over a rider's head, forcing hot sweaty air out through six rear exhaust ports.

Features:

• Mips® safety system
• EPP (Expanded PolyPropylene) chin bar for lightweight, durable protection
• Three adult shell sizes to more accurately fit a variety of head sizes and rider ages, improving overall safety
• Anatomical –3D” contoured cheek pads with emergency release system for EMS responders
• Plastic visor screws and brass inserts for easy impact break-away
• Exceeds certifications for DOT FMVSS 218