DESIGN: Construction: In-Mold, 20 vents Inner evacuation channels Rotexx: patent-pending Rotary Damping System Spiderlock(R) Solo IV: Permanent helmet stabilizing system Its inclination is fixed and it has a headband that completely surrounds the head It can be easily tightened using only one hand thanks to its dented wheel V-Lock divider: Sliding device to adjust strap position Airdry(R) padding: Adjustment padding for better comfort