Stone shield chest panel constructed with molded panels to protect the rider from. lofted small stones and debris. Level 1 back protector constructed to reduce impact energy transmission. Adjustable elastic torso strap, ratcheting buckle closure. Strategically placed ventilation ports. Soft chassis liner molded for maximum comfort. Supports Back Strap Kit & ID Panel *Sold separately (M/L only). Stone shield chest panel tested and certified according to European Standard EN 14021:2003. Back protector tested and certified according to European Standard EN 1621-2:2014.