The Alpinestars Tech-Air Ready GP Plus v4 Leather Suit is designed for sport and track riders seeking advanced protection, flexible performance, and a precise racing fit. Finished in Black, Red Fluo, and White, this model is sized US 40 / EU 50 and combines Flex Plus racing bovine leather with Alpinestars Composite Stretch Plus, Matryx, HRSF stretch panels, and GP Dynamic Friction Shield sliders. The suit’s Flex Plus race leather is specially refined for increased adaptability, comfort, and freedom of movement while maintaining professional racing standards for abrasion and tear resistance. It is also lighter than conventional bovine leather, helping reduce bulk without compromising race-focused performance.
The GP Plus v4 incorporates A-CS Plus stretch material across the side torso and shoulder blades to provide enhanced elongation, flexibility, breathability, and tear resistance. Perforated leather across the upper chest, abdomen, and thighs supports airflow, while lightweight Matryx panels on the torso promote ventilation when worn with a compatible Tech-Air airbag system. HRSF stretch inserts are strategically positioned at the crotch, back of the legs, inner arms, and pectoral areas for improved mobility in a tucked riding position. Soft stretch wrist and ankle cuffs help provide a comfortable seal, and the detachable comfort liner features biostatic Polygiene treatment to help maintain freshness during extended use.
Protection is provided by integrated GP-R armor at the elbows, forearms, knees, and shins, along with Nucleon Race shoulder armor and GP DFS shoulder, elbow, and knee sliders. The suit is fully Tech-Air Ready for use with the Alpinestars Tech-Air 5 or Tech-Air 10 Airbag Systems, making it suitable for riders who want to expand their track protection setup. A dedicated forearm pocket accommodates the Tech-Air 10 remote LED panel for convenient system access. The manufacturer part number and vendor part number are both 3150523132150. This Alpinestars GP Plus v4 suit is intended for compatible sport and track riding applications and should be selected according to the rider’s correct Alpinestars sizing and airbag-system requirements.
Features:
- Tech-Air Ready design compatible with Alpinestars Tech-Air 5 and Tech-Air 10 Airbag Systems
- Flex Plus racing bovine leather provides adaptive comfort, precise fit, abrasion resistance, and tear resistance
- A-CS Plus stretch panels improve flexibility, breathability, mobility, and tear resistance
- Matryx torso panels and perforated leather support airflow during sport and track riding
- HRSF stretch inserts are positioned at the crotch, back of legs, inner arms, and pectoral areas
- GP-R elbow, forearm, knee, and shin armor with Nucleon Race shoulder armor
- GP DFS sliders at the shoulders, elbows, and knees support race-focused protection
- Detachable comfort liner with biostatic Polygiene treatment helps maintain freshness
- Integrated forearm pocket accommodates the Tech-Air 10 remote LED panel
- Size US 40 / EU 50 in Black, Red Fluo, and White
- Manufacturer part number 3150523132150 and vendor part number 3150523132150