Leatt Chest Protector 4.5The hard shell 4. 5 Chest Protector is lined with 3DF AirFit impact foam that is CE certified and offers chest, back and flank protection. 3D multi layer, multi plate articulating design that proves to be comfortable as well as ventilated and works with or without a Leatt Neck Brace. Next step up in protection level is the 5. 5 Chest Protector Pro. Details Hard shell and 3DF AirFit ventilated soft impact foam CE tested and certified as impact