FLY RACING CE REVEL LITE ROOST GUARD BLACK SM/MD - 36-16048MChest and back plastic shells are constructed from a plastic that balances high levels of flexibility with low weight Thermoformed soft BioFoam chassis for increased comfort CE rated to EN14021: 2003 Stone Shield Revolutionary BioFoam chassis attachment system eliminates injury causing plastic rivets and utilizes soft plastics and TPR rubbers without high points that could injure in the event of an impact Chest and back plastic shells highly