Description: Integrally-molded helmet, equipped with a detachable anti-sun visor. High density EPS foam, great anti-shock ability, super lightweight. 18 holes diversion, the unique design can reduce the resistance and promote air flow, keep cool. Washable soft lining design, with anti-insect net to avoid mosquito effectively when cycling. Breathable and sweat absorbing sponge chin pad, more comfortable. Specially designed for mountain bike, cycling, racing, skating, skiing etc. Specification: Model: XX7 Material: PC + EPS Air Vents: 18 Holes Style: Integrally-molded Density: 75g/L Head Circumference Size L: 59-62cm / 23.22-24.40inch Package Includes: 1 Piece Helmet with Detachable Visor