POC Trabec Race Helmet, White/Orange, X-Large-XX-Large/59-62 EPS liner, outer PC shell Aramid fiber grid for protection and durability Designed to provide more coverage at temples and back of head Aerodynamic ventilation channel system with16 vent slots Size adjustment system Slim and comfortable fit system^The Trabec helmet fits and covers much like a traditional skate helmet rather than a traditional bike helmet which sits on top rather than around your head^Aramid fiber grid for protection and durability Slim and comfortable fit system The Trabec helmet fits and covers much like a traditional skate helmet rather than a traditional bike helmet which sits on top rather than around your head Aramid fiber grid for protection and durability