Material 600 D polyester doubled material on crash zones material tested according to EN 17092:2019 Safety WINNER knee protectors according to EN 1621-1:2012 upgradable with hip protector SAS-TEC SC-1/07 Ventilation Air Vent: ventilation zips Comfort Hitex® membrane: 100% waterproof, 100% windproof detachable thermo lining