Alpinestars A-4 Plasma Roost Guard Black/Red/White 6500526-132

The Alpinestars A-4 Plasma Roost Guard offers advanced protection designed specifically for off-road riders seeking lightweight and highly breathable armor. Crafted with a semi-rigid thermoplastic polyhedron chest protector, it provides exceptional structural strength while maintaining flexibility for unrestricted movement. The chest shell’s faceted design enhances impact dispersion and absorption, ensuring comprehensive coverage regardless of riding position. Over-injected flexible side wings contour to the body, delivering a secure fit that adapts to various body shapes for maximum comfort.

The included Nucleon Plasma back protector is constructed from viscoelastic biobased polymers that are pliable in all directions, enabling it to absorb and dissipate impact energy efficiently without sacrificing mobility. This back protector's design emphasizes ventilation, featuring a ribbed, perforated construction that promotes airflow and reduces heat buildup during intense rides. The system includes adjustable shoulder and side straps, allowing riders to customize fit for optimal performance, while removable, soft thermoformed padding enhances comfort during extended use.

The lining on both the back protector and chest area is soft and breathable, with a textured, ribbed surface that improves airflow and minimizes skin contact, reducing chafing and discomfort. Additional features include highly perforated, adjustable, and detachable rib and shoulder padding for extra impact protection against roost and collisions. Constructed from USDA-certified bio-based eco-friendly impact-absorbing materials, this roost guard combines sustainable design with high-performance safety features to meet the demands of off-road enthusiasts.

Features:

• Anatomically profiled for all forms of off-road riding, providing tailored protection and comfort.
• Semi-rigid thermoplastic polyhedron chest protector with faceted design for impact dispersion and structural strength.
• Nucleon Plasma back protector made from viscoelastic biobased polymers, offering pliability and impact energy dissipation.
• Lightweight, highly ventilated construction with ribbed, perforated 3D mesh chassis for superior airflow and heat reduction.
• Over-injected flexible side wings contour to body for a snug fit and unrestricted movement.
• Adjustable shoulder and side straps for optimized performance fit and comfort.
• Removable, soft thermoformed padding enhances rider comfort during extended rides.
• Perforated, adjustable, and detachable rib and shoulder padding provide additional impact protection against roost and impacts.
• Compatible with optional Race Kit, including upper and lower chest extensions and Y-Strap System for customizable coverage.
• Constructed from USDA-certified bio-based eco-friendly impact-absorbing materials, combining sustainability with safety.