Material breathable mesh cloth Comfort Held Clip-in Technology Safety Air-Bag, certified, unfolds completely within 0,1 seconds rib protector pocket for optional Shipping info airfreight Due to the safety regulations in the airfreight, we have to remove the gas cartridge of this article for shipping outside the European Union. Upon receipt of the product, you can use any commercially available 60cc or 100cc gas cartridge to restore the function of the airbag.