Our biker jacket is made from synthetic leather, so it is waterproof, stain-proof, and windproof! Trending offset zipper design, too many rivets to count!. Stand out from the crowd when wearing this slim fit totally cool jacket! Please refer to the size chart for correct fit. Largest size fits a 46" chest. If planning to wear a heavy sweater, order larger please. PU leather, or polyurethane leather, is an artificial leather made of thermoplastic polymer, and is considered vegan.