Ultra-lightweight Mountain Bike Cycle Bicycle Helmet Sports Safety Protective Helmet 13 Vents This mountain bike helmet seeks ultra-lightweight construction, ample ventilation, comfort wearing and streamline shape for reducing resistance all of which make it one-of-a-kind helmet for mountain biking, trail Cycle! It also features an in-mold PC shell and EPS liner integration for amazing impact conservation, with the fit adjustment in wheel to make it feel snug, Y-shape adjustable fixing strap and breathable soft chin guard. <br style="line-height: 20.8px;"> <br style="line-height: 20.8px;"> Features: <br style="line-height: 20.8px;"> Integrated in-mold PC shell with multi-dimensional cone-shape EPS impact foam. <br style="line-height: 20.8px;"> Ventilated channel system with13 vents provide cooling airflow when you’re riding hard. <br style="line-height: 20.8px;"> One-hand Fit adjustment back wheel for comfort wearing, suitable for head circumference 22.8 - 24.4 inch. <br style="line-height: 20.8px;"> Removable inner quality padding to absorb shocks upon impact and extra sweat. <br style="line-height: 20.8px;"> Breathable, removable and soft chin guard and Y-S fixing strap for comfort fit. <br style="line-height: 20.8px;"> Visor attached protects your eye from rain, sun, mud, and tree branches. <br style="line-height: 20.8px;"> Specially designed for mountain biking, scootering, trail Cycle, riding. <br style="line-height: 20.8px;"> Note: Please do not apply it on motor vehicles. <br style="line-height: 20.8px;"> <br style="line-height: 20.8px;"> Specifications: <br style="line-height: 20.8px;"> Color: Matt Black / Blue+Yellow / Yellow + Black + Red / Blue + Red + White / White / Red / Red + Black / Blue + Black / Dark Green + Black / Yellow + Black (Optional) <br style="line-height: 20.8px;"> Material: EPS &amp; PC <br style="line-height: 20.8px;"> Vents: 13 <br style="line-height: 20.8px;">Head circumference: 58-62cm / 22.8 - 24.4in <br style="line-height: 20.8px;"> Net weight: Approx. 361g / 12.8oz <br style="line-height: 20.8px;"> Package size: Approx. 26 * 22 * 20cm / 10.2 * 8.7 * 7.9in <br style="line-height: 20.8px;"> Package weight: Approx. 390g / 13.7oz <br style="line-height: 20.8px;"> <br style="line-height: 20.8px;"> Package List: <br style="line-height: 20.8px;"> 1 * Helmet