Alpha Industries Men's L-2B Skyray Flight Jacket. Alpha MJL45220C1 L-2b Skyray Flight Jacket. The l2b skyray is our lightweight, wind and water resistant flight jacket. Made with our doubleweave performance fabric, this bomber offers superior protection against the elements. The skyray has alpha reflective details on the back shoulder and wrist. For a lightweight performance parka check out the n-3b doubleweave. The l2b skyray has two snap-closure hand pockets and an internal mesh chest pocket with headphone cord hole. It features alphas signature zippered utility/pencil pocket with remove before flight keychain on the sleeve. Wide-rib knit collar, cuffs and waistband help keep the wind out. This flight jacket has a doubleweave shell made from 93% polyester/7% spandex.