The Alpinestars GP Plus v4 Tech-Air Ready leather suit is an advanced one-piece racing suit designed for sport and track riders seeking race-focused protection, mobility, and material innovation. Finished in Black, Red Fluo, and Dark Blue, this model is sized US 48 / EU 58 and features a performance-oriented construction made from Flex Plus racing bovine leather, Alpinestars Composite Stretch Plus, Matryx, HRSF stretch panels, and GP Dynamic Friction Shield sliders. The Flex Plus leather is specially refined for enhanced adaptability, comfort, abrasion resistance, tear resistance, and a precise riding fit while remaining lighter than conventional bovine leather.
The GP Plus v4 incorporates A-CS Plus stretch material through the side torso and shoulder blades to provide increased flexibility, reduced weight, and improved freedom of movement. Perforated leather across the upper chest, abdomen, and thighs promotes airflow, while lightweight Matryx panels on the torso support ventilation during demanding track sessions. HRSF stretch inserts are positioned in the crotch, back of the legs, inner arms, and pectoral areas for added mobility. Soft stretch wrist and ankle cuffs contribute to a comfortable fit, and the detachable comfort liner features a biostatic Polygiene treatment to help maintain freshness during repeated use.
Protection is provided by 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 and compatible with Alpinestars Tech-Air 5 and Tech-Air 10 Airbag Systems, making it suitable for riders who want to integrate an electronic airbag system into their track setup. A dedicated forearm pocket accommodates the Tech-Air 10 remote LED panel. The manufacturer and vendor part number is 31505231358. This Alpinestars suit is intended for motorcycle sport and track applications and should be selected according to the rider’s measurements and the manufacturer’s fit guidance.
Features:
- Flex Plus racing bovine leather: Provides adaptive comfort, precise fitment, and professional-level abrasion and tear resistance.
- A-CS Plus stretch material: Delivers increased elongation, flexibility, breathability, and freedom of movement with reduced weight.
- Matryx torso panels: Support lightweight ventilation and airflow during track riding, including use with Tech-Air airbag systems.
- Perforated leather: Promotes cooling airflow across the upper chest, abdomen, and thighs.
- HRSF stretch inserts: Improve mobility through the crotch, back of the legs, inner arms, and pectoral areas.
- Race protection: Includes GP-R elbow, forearm, knee, and shin armor, plus Nucleon Race shoulder armor.
- GP DFS sliders: Provides replaceable friction-management protection at the shoulders, elbows, and knees.
- Tech-Air Ready design: Compatible with Alpinestars Tech-Air 5 and Tech-Air 10 Airbag Systems.
- Comfort liner: Detachable liner with biostatic Polygiene treatment helps maintain freshness.
- Fit and identification: US 48 / EU 58, Black/Red Fluo/Dark Blue, manufacturer and vendor part number 31505231358.