This protective jacket with 3DF hard shell shield! It features perforated 3DF protective foam and ventilation holes for good air circulation. The top Body Protector 5.5 model scores 25 points on the internal scale. - High-density polyethylene plastic shield Leatt - Perforated AirFit Leatt 3DF protective foam - Multi-layer, multi-plate construction - 3-dimensional shape for perfect fit - Ventilation holes for good air circulation - New antibacterial MoistureCool and Air Mesh fabrics - BraceOn system for use with neckbrace - Removable front and back plates for perfect neckbrace integration The hard shell 4.5 Junior vest features AirFit 3DF shock-absorbing foam and offers protection for chest, back, elbows and shoulders. CE-tested and certified, its 3D design ensures a comfortable fit and keeps you cool thanks to its ventilation openings and new anti-odour MoistureCool and AirMesh materials. This vest can be used with or without neck protection. The 5.5 Junior vest is the next step up in protection.