Fly Racing Revel Offroad Roost Guard CE (Black) Size Adult 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. Air channels molded into the BioFoam allow hot air to escape. CE rated protection created using a triple layer, high density memory foam in between the outer plastic and the BioFoam that is in contact with the user. Triple layer construction (as opposed to a single thick layer) allows layers to move relative to one another further improving impact performance. Full upper torso plastic roost deflector. Neck brace compatible design: simply slide underneath the plastics or remove the plastic panels on the chest and back depending upon on neck brace design. Removable thermoformed soft BioFoam chassis for increased comfort and easy washing. Multiple vents for maximum airflow. Adjustable shoulder straps for a custom comfortable fit. Easy-to-use waist belt buckles integrated into the chest plastic.