Alpinestars Amok Air Drystar Mens Motorcycle Jackets - Gray - X-Large Innovative poly-fabric shell construction incorporating extensive mesh panels on back, chest and sleeves for internal cooling flow of air. Fixed full mesh liner enhances garments all-round breathability and cooling performance. Detachable and interchangeable DRYSTAR liner jacket for guaranteed breathability and waterproofing. Detachable and interchangeable complete thermal liner jacket delivers excellent scope for riding cooler conditions. Class-leading impact protection delivered by detachable CE-certified Bio-Air shoulder and elbow protectors. Bio-Air protection inserts are perforated to enhance garments ventilation attributes.