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Alpinestars A-4 Plasma Chest Protector, Motorcycle Body Armor, White with Black and Red Accents, Ventilated Hard Shell Design, Adjustable Side Straps, Lightweight Off-Road Protection
  • Alpinestars A-4 Plasma Chest Protector, Motorcycle Body Armor, White with Black and Red Accents, Ventilated Hard Shell Design, Adjustable Side Straps, Lightweight Off-Road Protection
  • Alpinestars A-4 Plasma Chest Protector, Back View, Black and Red, featuring a large red Nucleon PLASMA back protector with a wavy perforated design, black mesh chassis with adjustable straps, and white Alpinestars branding.
A-4 Plasma Chest Protector
5 | 1 reviews

A-4 Plasma Chest Protector

motocross | body protectors

€169,95
Color:Black Red White
A-4 Plasma Chest Protector

Size:M/L

Size guide
Earn 170 points with Alpinestars Membership
Description

Expertly designed for all-terrain performance, the A-4 Plasma Chest Protector is a lightweight, anatomically profiled solution for off-road riders seeking superior impact protection. Featuring a Nucleon PLASMA back protector and a geodesic polyhedron chest shell, it delivers CE Level 1 certified safety with exceptional airflow and flexibility. The system includes adjustable side straps and removable rib and shoulder padding for a customized, Bionic Neck Support compatible fit.
Key Features

• Nucleon PLASMA Back Protector: Constructed from USDA Certified Biobased viscoelastic material, this protector offers multi-directional pliability and a contoured fit for effective impact energy dissipation.
• Geodesic Chest Armor: Features a lightweight, ultra-ventilated outer shell inspired by geodesic polyhedrons, providing high structural strength and maximum airflow with minimal material.
• Adaptive Fit: Over-injected flexible side wings follow the body's natural contours to ensure superior comfort and unrestricted freedom of movement while riding.
• Extended Coverage: Includes highly perforated, adjustable, and detachable rib and shoulder padding to provide targeted protection against tire roost and impacts.
• BNS Compatibility: Integrated elasticated pull tabs on the soft tactile thermoformed shoulder pads allow for seamless integration with Alpinestars Bionic Neck Supports.
Protection

• USDA Certified Biobased Nucleon PLASMA back protector provides high-performance impact force dispersion and absorption.
• Geodesic polyhedron chest shell delivers structural strength and robust protection against impacts.
• CE Level 1 certified back protector: EN 1621-2:2014.
• CE Level 1 certified chest protector: EN 1621-3:2018.
• Perforated 3D mesh chassis and padding offer reliable defense against tire roost.
• Over-injected flexible side wings ensure a secure fit for consistent protection coverage.
• Adjustable and detachable rib and shoulder padding for customizable impact protection.
• Bionic Neck Support (BNS) compatible via integrated elasticated pull tabs.
Construction

• According to European statutory law, the CE mark is a conformity requirement for the marketing of this product. The following standards apply:
• Back protector: EN 1621-2:2014 LEVEL 1
• Chest protector: EN 1621-3:2018 LEVEL 1
Shipping & Returns
  • Free shipping above 100 €
  • Free 30 day exchanges and returns
Reviews
5 | 1 reviews
SKU 8059347564814 EAN 6500526-132-ML

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Frequently asked questions Hide FAQs
Is the A-4 Plasma Chest Protector CE-certified?

Yes, this chest protector meets CE certification standards for impact protection. The semi-rigid thermoplastic polyhedron chest plate and Nucleon PLASMA back protector are engineered to provide certified protection for off-road and motocross riding.
Does this chest protector include back protection?

Yes, the A-4 PLASMA includes integrated Nucleon PLASMA back protection. This provides comprehensive front and back coverage in a single, anatomically profiled unit designed specifically for off-road riding.
How does the A-4 Plasma fit under a jersey or jacket?

The A-4 PLASMA features an anatomically profiled, low-profile design that fits comfortably under motocross jerseys and off-road jackets. The lightweight construction and breathable materials ensure it doesn't add excessive bulk while maintaining full protection coverage.
Can this chest protector be worn for all types of off-road riding?

Yes, the A-4 PLASMA is engineered for all forms of off-road riding including motocross, enduro, trail riding, and off-road adventure. Its adaptive design and comprehensive protection make it suitable across different off-road disciplines and riding intensities.
Is the A-4 Plasma Chest Protector breathable for hot weather riding?

Yes, the A-4 PLASMA is specifically designed with breathability in mind. The thermoplastic polyhedron structure and Nucleon PLASMA back protector allow airflow while maintaining protection, making it suitable for warm weather off-road riding conditions.