A-4 Plasma Chest Protector: Anatomically profiled for all forms of off-road riding, the A-4 PLASMA Chest Protector is a game-changer for dirt bike, motocross, and enduro enthusiasts. Featuring a semi-rigid thermoplastic polyhedron design chest protector and a Nucleon PLASMA back protector, this gear is engineered to be lightweight, breathable, comfortable, adaptive, and protective. Features and Specifications: Anatomically profiled for all forms of off-road riding, including dirt bike, motocross, enduro, and trail riding. Lightweight and breathable design with a semi-rigid thermoplastic polyhedron chest protector. Nucleon PLASMA Back Protector crafted from USDA Certified Biobased viscoelastic material for exceptional comfort and flexibility. Multi-directional pliability allows the protector to mold to the body, effectively dissipating impact energy.