Outer shell 100% polyester with PVC coating Lining 3D air mesh panels (100% polyester) in back to promote air circulation Fit/features quick fastener on front 1 external pocket Protection Turtle Air-Bag, unfolds completely within 0,1 seconds SAS-TEC coccyx protection Velcro for optional breast protector SAS-TEC back protector 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.