A large part of the helmet is made from recycled EPS materials with 20% cork. AVID Progressive EPS - A mix of different density EPS ensures that both strong and light impacts are optimally absorbed. At the same time, the material remains light and allows for the best possible ventilation. In-Mold shell construction Click-to-Fit system - Height-adjustable adjustment system Visor with reflective line - made of cork with removable padding Webbing 100% recycled polyester Ventilation - 13 vents ensure optimal ventilation Weight: 315 g (size M) Type Article Vents 13 pcs. Features reflective Use city / trekking Color name matcha matte Gender adult Main color green Construction In-Mold Head circumference 52 cm , 53 cm , 54 cm , 55 cm Adjustment system Click-to-Fit