1. 2 - 1. 4mm full-grain leather construction provides excellent abrasion resistance. Removable thermal vest. Multiple stitched main-seam construction for maximum tear resistance. Pre-curved sleeves for a perfect fit in the riding position. Ergonomically placed stretch panels for optimal comfort and fit. Adjustable waist. Removable CE certified shoulder and elbow protectors. YKK semi auto lock zippers. Waist connection zipper allows attachment to selected Alpinestars leather pants. TPR logos. Back protector compartment with a foam back pad (CE-certified RC protector sold separately)