The Alpinestars GP Plus v4 Sprint 1-Piece Leather Suit is engineered for serious track performance, combining race-grade protection, advanced materials, and a highly pre-curved race fit. Finished in Black, Red Fluo, and White, this model is sized US 44 / EU 54 and is designed for riders who demand unrestricted movement in an aggressive racing position. The suit is optimized for easy integration with the Alpinestars Tech-Air 7x Airbag System and can accommodate the Tech-Air 7x sleeve display or Tech-Air 10 wireless display for enhanced airbag system visibility.
The suit uses Flex Plus racing-grade bovine leather with dual-layer construction in exposed areas, providing strong abrasion resistance while maintaining a soft, adaptive feel. Fully perforated leather panels promote airflow and breathability during demanding riding sessions, while Composite Stretch A-CS technology on the back panel improves comfort, flexibility, and ventilation with a lower-profile design than traditional leather accordion panels. The material provides substantial elongation, increased tear resistance compared with HRSF, and significantly improved cut resistance versus leather. Aramid reinforcements at the elbow flexion zones add strength in high-stress areas, while engineered MATRYX material on the shin delivers a strong resistance-to-weight ratio, airflow, and flexibility.
Protection is provided by race-spec GP-R armor at the elbows, knees, and shins for extended coverage, along with Nucleon Race shoulder armor for impact protection and abrasion resistance. Race-proven GP DFS sliders help manage friction, and removable elbow sliders allow setup flexibility for track use. The suit also incorporates the Alpinestars Race-spec Supertech R10 aerodynamic hump, engineered to work with the Alpinestars Supertech R10 helmet for improved streamlining when tucked into a racing crouch. This Alpinestars GP Plus v4 Sprint suit is manufactured by Alpinestars, with manufacturer and vendor part number 3150225-1231-54.
Features:
- Race-grade Alpinestars one-piece leather suit with a highly pre-curved race fit for track riding.
- Compatible with the Alpinestars Tech-Air 7x Airbag System, Tech-Air 7x sleeve display, and Tech-Air 10 wireless display.
- Flex Plus racing-grade bovine leather with dual-layer construction in exposed areas for enhanced abrasion resistance.
- Composite Stretch A-CS technology provides breathability, flexibility, comfort, and a lower-profile alternative to traditional leather stretch panels.
- Fully perforated leather panels improve airflow and ventilation during high-performance riding.
- GP-R elbow, knee, and shin armor provides extended coverage in key impact zones.
- GP DFS sliders offer race-proven friction control, with removable elbow sliders for setup flexibility.
- Nucleon Race shoulder armor supports impact protection and abrasion resistance.
- MATRYX shin material combines high resistance-to-weight performance with air permeability and flexibility.
- Aramid reinforcements strengthen the elbow flexion zones.
- Supertech R10 aerodynamic hump is designed to complement the Alpinestars Supertech R10 helmet.
- Size US 44 / EU 54; color Black, Red Fluo, and White; part number 3150225-1231-54.