Light, easy-to-use kids/youth body armor that can incorporate the YNS Shells are highly perforated for maximum breathability and air ventilation Injected shells constructed with a back-integrated grid structure to absorb and dissipate impact forces Hard shells are constructed from a high-performance polymeric material blend for optimized flexibility and excellent weight savings Wide, flexible lateral protective structure for secure fitment with hook-and-loop attachment straps Soft bio-foam and thermoformed padding for maximum comfort and close-to-the-body fit Back features a removable puck to house the Alpinestars YNS Adjustable shoulder straps