Alpinestars A4 Plasma Chest Protector - Black/Red/White

An off-road chest protector shaped for all types of dirt riding. It pairs a semi-rigid thermoplastic chest shell with a Nucleon PLASMA back protector, aiming for low weight, airflow and a close, adaptive fit.

Key features

• Nucleon PLASMA back: Made from a USDA Certified Biobased viscoelastic material that bends in all directions and moulds to the body.
• Geodesic chest shell: Faceted polyhedron design gets its strength from shape, so less material is needed and weight stays down.
• Flexible side wings: Over-injected wings follow the body for comfort and movement.
• Rib and shoulder padding: Perforated, adjustable and detachable for extra roost and impact coverage.
• Optional race kit: Works with the Nucleon PLASMA Extended Roost Coverage kit, which adds chest extensions and a Y-Strap so you can run it without the back protector.
• BNS compatible: Elasticated BNS pull tabs on the removable thermoformed shoulder pads.

Specifications

• Chest: Semi-rigid thermoplastic polyhedron shell
• Back protector: Nucleon PLASMA, USDA Certified Biobased viscoelastic
• Padding: Detachable rib and shoulder pads
• Neck brace: BNS compatible
• Brand: Alpinestars
• Category: Armour & Protection
• Riding style: Road
• Fit: Unisex
• Colour: Black/Red/White

Who it's for

Dirt riders who want light, breathable roost and impact protection with room to add the race kit later.