Alpinestars new technical professional spec 1PC Racing Leather Suit, the GP Tech V4 Leather Suit uses feedback from Alpinestars rostrum of athletes to deliver race-grade technology in a suit optimized for performance, protection and comfort. Tech-Air® 10 ready, this suit offers superior freedom of movement and high level of ventilation through the development of innovative new materials: MATRYX® ultra abrasion resistant and highly breathable zones, Cool-iR Tech treatment for the prevention of heat build-up, and Kevlar® net bonding reinforcement for prevention of heat transfer. GP Tech V4 Leather Suit