The Troy Lee Designs SE4 Polyacrylate youth MX helmet comes with MIPS, incorporating brain rotational protection and reducing rotational forces to the brain. It features an EPP (Expanded Polypropylene) chin bar for lightweight, durable protection and weighs 1350 grams. Three helmet shell sizes more accurately fit a variety of head sizes and rider ages, improving overall safety but also improving weight and aerodynamics. It comes with anatomical 3D contoured cheek pads with an emergency release system for EMS responders to easily remove cheek pads before removing the helmet, and it also comes with a Troy Lee Designs drawstring helmet bag. Sixteen intake ports channel cool air around and over a rider's head, forcing hot air through six rear exhaust ports for superior airflow and plastic visor screws and brass inserts give easy impact break away protection. It is ECE 22.05 certified and offers an ultra-secure and adjustable closure thanks to stainless steel D-rings. Available in a wide choice of colours and designs.