The Alpinestars Leather One-Piece Fusion suit features advanced RIDEKNIT stretch inserts and extensive perforation at the crotch, back of the legs, abdomen, chest, neck, inner arms, and shoulder blades. Additionally, the innovative MATRYX structural inserts on the thighs, stomach, chest, and back hump provide excellent ventilation and durability. The one-piece suit is Tech Air compatible, including Tech Air 5. It's made from high-quality cowhide leather with dual layers in the seat area for exceptional abrasion resistance. It includes DFS protectors against impact and abrasion, as well as inner Race GP-R protectors for a comfortable and secure fit. Fully CE-certified according to CE standards, Category II prEN17092 - Class AAA.