This is a nylon jacket from the National Museum of the US Air Force in Dayton, Ohio. A friend purchased it over 20 years ago when they visited the museum and gave it to me. It has a brushed lining (likely polyester) and provides some warmth. While it hasn't been worn much, there is a small stain on the left sleeve line, as shown in the last image. Made in the USA Size: SMALL 34-36 *Runs large* Actual Measurements (flat lay): Shoulder width: Raglan sleeve Width: 55cm Length: 60cm Sleeve length: 87cm (measured from the center of the collar to the end of the sleeve) Color: Silver Material: 100% Nylon