SE4 POLYACRYLITE YOUTH PROTECTION Weighing in at 1350 grams, our SE4 Youth Polyacrylite Helmet comes with MIPS, incorporating brain rotational protection. This helmet comes with 16 intake ports to channel cool air around and over a rider's head, forcing hot sweaty air out through twelve rear exhaust ports. The Youth SE4 Polyacrylite is DOT & ECE 22.05 Certified. This helmet is designed and intended exclusively for off-road dirt bike riding. Complies with the U.S. CPSC safety standard for motocycle helmet for persons age 5 and older. PART# -112002003 (M)