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Alpinestars A‑4 Plasma Chest Protector – Lightweight MX/Enduro Upper Body Armour, CE Certified, Ventilated

The Alpinestars A‑4 Plasma Chest Protector delivers high‑performance upper‑body protection for motocross, enduro, and off‑road riders who demand lightweight comfort without compromising safety. Designed using Alpinestars’ advanced polymer hard‑shell technology, the A‑4 Plasma provides CE‑certified impact protection across the chest and back while maintaining exceptional ventilation for long, intense riding sessions.

Its flexible panel design, strategic airflow channels, and neck‑brace compatibility make it a favourite among riders who want maximum mobility and race‑ready performance.

Key Features

CE‑certified chest & back protection for reliable impact absorption
Lightweight polymer shell engineered for strength and flexibility
Optimised ventilation system for maximum airflow and rider comfort
Ergonomic panel shaping for unrestricted movement
Neck‑brace compatible design for enhanced safety integration
Adjustable shoulder and waist straps for a secure, personalised fit
Durable, easy‑clean construction ideal for MX and enduro conditions

Ideal For

Motocross
Enduro
Trail riding
Off‑road racing

Welcome to MD Racing Products, where passion meets performance in the world of Motocross. As a family‑run business since 1983, we’ve spent decades supporting riders, racers, and trade professionals with the very best in Motocross Parts & Accessories.

From cutting‑edge technology to time‑tested classics, our curated range serves riders at every level. We pride ourselves on personal service, expert knowledge, and a commitment to quality that has made us a trusted name in the UK motocross community.

Trusted by UK riders since 1983 — MD Racing Products delivers the best motocross and enduro deals in the game. Family‑run. Rider‑driven. Built for performance.