4mm full grain leather construction for excellent abrasion resistance Multiple stitched main seam construction for maximum tear resistance Patented external high modulus thermoplastic protection on the shoulders GP protectors at the elbow with injection molded shell and dual density padding YKK semi auto locking zippers Removable thermal vest Adjustable waist Waist connection zipper allows attachment to selected Alpinestars leather pants Die-cut leather logos Back protector compartmentwith a foam back pad (CE certified protector available as accessory)