LS2 Helmets Strobe Solid Modular Motorcycle Helmet with Sunshield (Black, Medium) Lightweight, aerodynamic, HTPP composite helmet shell cuts through the wind keeping the rider comfortable and resulting in less fatigue Fully adjustable flow-through ventilation to keep you cool in the heat but allow you to block the breeze when it's cold Built-in Twin Shield System Drop Down Sun Shield to help protect from the sun's rays Liner is fully removable and washable, so you can keep it as fresh as new DOT approved quick release strap for a secure fit and easy on and off