Tech-Air 5(R) ready Knitted design textile jacket with a body mapped fit Stretch panel inserts accommodate Alpinestars Airbag System Hard wearing poly-fabric chassis Large mesh panel on back of collar Level 1 Nucleon Flex Plus armor on shoulder and elbow DFS Lite shoulders with dynamic friction shield Elongated jacket rear provides enhanced coverage Knitted seams provide maximum stretchability Hook and loop waist and cuff with semi-automatic zip Low profile sports collar with soft lining Large tooth main zipper Loops allow attachment to Alpinestars riding pants Fully CE-certified riding garment to CE-Category II prEN 17092 standards -- A class With a highly durable and abrasion-resistant poly-fabric main shell and subtly incorporated class-leading Nucleon Flex Plus protection, the T SP-5 Rideknit Jacket is designed to keep you safe and comfortable as you hold the throttle open. Fully optimized for use with or without Tech-Air5(R), Alpinestars world leading electronic airbag safety system, this universal, sports-fit riding jacket is equipped with knitted technology fabric on the seam area for maximum stretchability, thus optimizing fit and comfort.