The Alpinestars GP Plus v4 Tech-Air Ready Leather Suit is an upper mid-level racing suit designed for sport and track riders who demand advanced materials, flexible movement, and dependable protection. Finished in Black, Red Fluo, and White, this model is sized US 42 / EU 52 and is manufactured by Alpinestars. The manufacturer part number and vendor part number are 3150523132152. Its complete race-focused construction is designed to provide a precise, adaptive fit for riders using the suit on the track or in high-performance riding environments.
The suit uses Flex Plus racing bovine leather, specially refined in Italy, with enhanced adaptability for improved comfort, rider feel, and freedom of movement. Flex Plus leather meets Alpinestars’ professional racing standards for abrasion and tear resistance while weighing less than standard bovine leather. Alpinestars Composite Stretch Plus, also known as A-CS Plus, is positioned at the side torso and shoulder blades to deliver increased stretch, reduced weight, and improved tear resistance compared with conventional leather stretch panels. Perforated leather across the upper chest, abdomen, and thighs, along with lightweight, breathable Matryx panels on the torso, promotes airflow during demanding rides.
Protection and mobility are further supported by HRSF stretch inserts at the crotch, back of the legs, inner arms, and pectoral areas. GP DFS shoulder, elbow, and knee sliders help manage impact and abrasion exposure, while integrated GP-R elbow, forearm, knee, and shin armor works with Nucleon Race shoulder armor for race-oriented coverage. The removable comfort liner features a biostatic Polygiene treatment to help maintain freshness. Soft stretch wrist and ankle cuffs improve comfort, and the suit is fully Tech-Air Ready for use with compatible Tech-Air 5 or Tech-Air 10 Airbag Systems. A forearm pocket accommodates the Tech-Air 10 remote LED panel, making this Alpinestars suit a strong fit for riders seeking modern track protection and airbag-system compatibility.
Features:
- Tech-Air Ready construction is compatible with Tech-Air 5 and Tech-Air 10 Airbag Systems
- Flex Plus racing bovine leather provides professional racing-level abrasion and tear resistance
- A-CS Plus stretch panels improve flexibility, breathability, and freedom of movement
- Matryx torso panels support lightweight ventilation during track riding
- Perforated leather on the upper chest, abdomen, and thighs promotes airflow
- GP DFS shoulder, elbow, and knee sliders provide race-focused external protection
- GP-R elbow, forearm, knee, and shin armor with Nucleon Race shoulder armor
- HRSF stretch inserts are positioned at the crotch, back of legs, inner arms, and pectoral areas
- Removable comfort liner features biostatic Polygiene treatment
- Size: US 42 / EU 52
- Color: Black / Red Fluo / White
- Brand and manufacturer: Alpinestars
- Manufacturer and vendor part number: 3150523132152