Alpinestars a-4 Plasma Roost Guard Black/Red/White

Elevate your off-road riding safety with the Alpinestars A-4 Plasma Roost Guard. Designed for superior protection and comfort, this advanced roost guard integrates cutting-edge materials and ergonomic design to keep you safe on the trails and track.

Description

The Alpinestars A-4 Plasma Roost Guard is anatomically profiled to deliver exceptional protection for all forms of off-road riding. It features a semi-rigid thermoplastic polyhedron design chest protector and a highly flexible Nucleon Plasma back protector, both engineered for optimal lightweight performance, breathability, comfort, and adaptability. The Nucleon Plasma back protector is constructed from viscoelastic material derived from bio-based polymers, forming a structure that is pliable in all directions while effectively dissipating impact energies. This ensures strong impact force dispersion and absorption across maximum coverage areas, regardless of your riding position.

The lightweight and ultra-vented chest armor boasts an outer shell design that achieves superior structural strength and load performance compared to traditional flat surfaces. Over-injected flexible side wings on the chest protector adapt to your body's contours, providing enhanced comfort and unrestricted freedom of movement. For a personalized and optimized fit, the roost guard is equipped with adjustable shoulder and side straps. Rider comfort is further enhanced by removable soft tactile thermoformed shoulder padding. The back protector's lining offers a soft feel against the skin, maintaining structural integrity and reducing material tearing, while its ribbed design promotes superior airflow. Additional protection against tire roost is provided by the perforated 3D mesh chassis. This Alpinestars A-4 Plasma Roost Guard is also compatible with Bionic Neck Support (BNS) systems via dedicated shoulder pull tabs, and utilizes USDA certified bio-based, eco-friendly, and sustainable impact-absorbing materials, reflecting a commitment to both performance and the environment.

Features & Highlights

• Advanced Impact Protection: Features a highly flexible Nucleon Plasma Back Protector and a semi-rigid thermoplastic polyhedron design chest protector, both engineered from bio-based viscoelastic polymers for exceptional impact force dispersion and absorption.
• Lightweight & Ventilated Design: Built to be lightweight and ultra-vented, with a perforated 3D mesh chassis and ribbed back protector lining to ensure superior airflow and breathability, keeping you comfortable during intense rides.
• Adaptive & Ergonomic Fit: Anatomically profiled with over-injected flexible side wings and adjustable shoulder and side straps, conforming to your body for optimal comfort, freedom of movement, and a secure, personalized fit.
• Enhanced Coverage & Comfort: Includes highly perforated, adjustable, and detachable rib and shoulder padding, offering additional protection against roost and impacts while ensuring enhanced rider comfort.
• BNS Compatibility & Eco-Friendly Materials: Designed with Bionic Neck Support (BNS) compatibility via shoulder pull tabs and constructed from USDA certified bio-based, eco-friendly, and sustainable impact-absorbing materials.
• Race Kit Ready: Engineered to be compatible with the optional Nucleon Plasma Extended Roost Coverage kit, which includes upper and lower chest extensions and an additional Y-Strap System for versatile use.

Technical Specifications

• Back Protector Certification: EN 1621-2:2014 Level 1
• Chest Protector Certification: EN 1621-3:2018 Level 1
• Material Composition: 40% Polyurethane, 25% Ethylene-Vinyl Acetate, 12% Thermoplastic Elastomer, 11% Polypropylene, 10% Polyester, 2% Other
• EAN: 8059347564814

Important to Know

• The Nucleon Plasma Extended Roost Coverage kit (including Upper and Lower Chest Extensions, and an additional Y-Strap System) is an optional accessory and is not included with the A-4 Plasma Roost Guard.