Alpinestars A-4 Plasma Roost Guard - Black/Red/White - M/L

The A-4 plasma plasma is anatomically contoured for all forms of off-road driving and offers lightweight, breathable protection with great comfort. It features a semi-rigid chest plate with a geodesic polyhedron design as well as a Nucleon Plasma back protector made of USDA certified memory foam. It provides multi-directional flexibility, perfectly adapts to the body and reliably distributes impact energy. The geodesic structure of the chest shell ensures high strength with light weight and maximum ventilation, ideal for long journeys. The flexible side wings adapt perfectly to the contours of the body and ensure freedom of movement. The A-4 is compatible with the Nucleon Plasma Extended Roost Coverage Kit (optional) (with upper/lower chest extensions and Y-strap system), allowing it to be worn without a back protector. Construction: Environmentally friendly and shock absorbing materials. Adjustable shoulder straps and side straps. Soft, thermoformed shoulder pads. Ribbed lining for air circulation and skin comfort Perforated 3D mesh chassis to prevent tire loss. Certifications: Back protection: EN 1621-2:2014 Level 1. Chest protection: EN 1621-3:2018 Level 1. M/L Size: Height: 164-182 cm, Weight: 54-85 kg, Chest circumference: 98-108 cm. XL/XXL Size: Height: 182-194 cm, weight: from 85 kg, chest circumference: 108-118 cm. Material composition: 40% Polyurethane, 25% Ethylene Vinyl Acetate, 12% Thermoplastic Elastomer, 11% Polypropylene, 10% Polyester, 2% Other.

• Anatomically profiled for all forms of off-road riding
• Features a semi-rigid thermoplastic polyhedron design chest protector and a Nucleon Plasma back protector that are engineered to be lightweight, breathable, comfortable, adaptive, and protective
• Key Features
• Highly flexible Nucleon Plasma Back Protector constructed from viscoelastic material engineered from biobased polymers and formed into a structure that is pliable in all directions while maintaining the ability to dissipate impact energies
• Lightweight and highly ventilated, this protector offers strong impact force dispersion and absorption while ensuring maximum coverage areas in all riding positions