This SE4 liner is sized for the youth TLD SE4 helmet

more comfortable neck collar

with the Troy Lee Designs Flowline SE Helmet

Featuring zippered mesh ventilation at the front and back of thighs

not too racy

Youth Se4 Polyacrylite Helmet W/Mips Skooly Blue/Orange Size:M This SE4 liner is sizedWeighing in at 1350 grams, our new SE4 Polyacrylite Youth 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 six rear exhaust ports. This helmet is designed and intended exclusively for off road dirt bike riding. MX helmets DO NOT INCLUDE ACU STICKERS. For MX Helmets with ACU stickers please use our dealer