Alpinestars A-5 Plasma Chest Protector XS/S by ALPINESTARS - Black, Red & White

The Alpinestars A-5 Plasma Chest Protector is engineered for maximum impact dispersion and rider comfort, featuring a highly perforated 3D mesh construction that enhances airflow and breathability during intense riding sessions. The protector’s design includes independent side wings from the main semi-rigid outer shell, allowing for a fully adaptive fit that contours to the rider’s body for improved comfort and freedom of movement. The back protector employs a composite construction with a central semi-rigid thermoplastic zone on a Nucleon Plasma backing, providing superior impact force absorption and dispersion in critical areas.
Constructed from bio-based, viscoelastic Nucleon Plasma material, this protector maintains pliability in all directions while effectively dissipating impact energy. Its lightweight, ventilated design ensures comprehensive coverage in various riding positions, while the adjustable shoulder and side straps enable a customized fit for optimal performance. Soft, thermoformed shoulder padding enhances rider comfort, and removable liners help maintain the structural integrity of the protectors, reducing the risk of material tearing.
The Nucleon Plasma components are ribbed for improved airflow and feature reduced contact material to minimize skin irritation. The perforated 3D mesh chassis adds an extra layer of protection against tire roost, making it suitable for demanding riding environments. Additionally, the chest protector is compatible with Bionic Neck Support (BNS) systems via dedicated shoulder pull tabs, offering enhanced rider safety and support. Weighing approximately 38 pounds, this protector balances durability, protection, and comfort for serious riders seeking reliable impact protection in a lightweight package.

Features:

• Perforated 3D mesh chassis for airflow and breathability

• Independent side wings for adaptive fit

• Composite back protector with impact-dispersing thermoplastic zone

• Nucleon Plasma viscoelastic material for impact absorption

• Lightweight and ventilated design for maximum coverage

• Adjustable shoulder and side straps for a personalized fit

• Removable soft thermoformed shoulder padding for comfort

• Liners maintain structural integrity and reduce tearing risk

• Ribbed Nucleon Plasma protectors enhance airflow and reduce skin contact

• Additional protection against tire roost with perforated mesh

• Compatible with Bionic Neck Support systems via shoulder pull tabs