Vintage all cotton knit fabric with WWII era military aircraft print. (I'm sorry, militaria - or airplanes - aren't my specialty, I can't tell you exactly which planes these are.)
Fabric IS a specialty of mine, though. So I can tell you that this is a nice heavy knit fabric, without spandex. Soft and nice, never laundered. It's a 1 yard length of 58" wide fabric.