The new Airoh T600 has a Carbon-Kevlar outershell. The visor is Pinlock ready & weighs 1300 grams. The T600 is wind-tunnel tested & has an excellent ventilation system. Specifications: 2 Shell Sizes Carbon & Kevlar Composite Fiber Externall Shell Wind Tunnel Tested Pinlock Ready Weight: 1300 g Visor Lock System Air ventilation System Ring Helmet Lock