100% Nylon; Fill: 100% Polyester Zipper closure Dry Clean Only 100% Flight Nylon: The CWU 45/P Flight Jacket was first issued to Air Force and Navy pilots. It is constructed with a 100% mid-weight flight nylon shell. It also features a a fold down collar. Dry clean only. Bonus Features: This authentic flight jacket has a utility pocket on the sleeve with a signature “Remove Before Flight” flag. There are also 2 lower flap pockets and 1 interior patch pockets. The shirred sleeves and extra-thick knit rib cuffs and waistband give this jacket the authentic bomber look. Core Fit: This military-style jacket features a core fit. The waistband generally falls just above the hip. It has extra room in the body and sleeves, allowing for easier mobility and extra flexibility. For Intermediate Weather: This bomber jacket features a thicker 100% polyester fill and a zipper closure with storm flaps, ensuring warmth in intermediate weather. The jacket is also water resistant, making it ideal for light rain or mild snow. About Alpha Industries: After being commissioned in 1959, Alpha Industries began designing and manufacturing jackets for the U.S. military, protecting soldiers, aviators and sailors from the harsh elements. Today, Alpha Industries has closely maintained the authentic design for civilian fashion, outfitting men and women to realize their potential. Shipping: Arrives in 3 to 4 business days via USPS First Class. Priority shipping is available at checkout.