Breathable Cycle Helmet Bicycle Helmet Ultralight Integrated Bike Helmet Safety Cap Cycle Equipment This product is made of fine quality environmental protections material and reinforced EPS sheet, with strong impact resistance, aging resistance, not easy to scratch. Features: Adopting aerodynamic design with fewer frontal facing surfaces, and featuring cooling holes, coupled with large diameter heat dissipation hole at the rear, can accelerate heat dissipation faster. The riding helmet is made of lightweight materials and is lined with breathable material for comfort. PC material, dual materials integrated molding, stable and wear-resistant, protecting the heads. The helmet is made of thickened EPS foam material, which can effectively absorb impactforce and minimize the risk of injury to the heads during impact. There is an adjustment knob on the back of the bike helmet to help adjust the heads circumference. Detachable lining for easy cleaning and more comfortable wearing. Thickened chinpad design reduces discomfort and prevents chinpain. Specifications: Color: white, black, grey, blue, purple (optional) Material: PC+EPS Heads circumference: 580-610mm Item size: 275 * 155mm / 10.6 * 6.1in Item weight: 230g / 8.1ounce Package size: 282 * 228 * 170mm / 11.1 * 9.0 * 6.7in Package weight: 467g / 1.0lb Packing List: 1 * Bike Helmet