Premium Level 2 Soft Impact Foam. The Chest Protector 3DF AirFit Evo features a soft shell with protection for the chest and back. 3DF Airfit is a multi-impact energy-absorbing impact foam, providing comfortable, lightweight protection with maximum ventilation for airflow. The Chest Protector features 3D design that guarantees a perfect fit. The BraceOn system allows for a seamless neck brace fit. Total Leatt® protection score of 11 points. CE tested and certified as impact protection: Chest EN1621-3 Level 2. Back EN1621-2 Level 2.