Please read the profile before commenting or purchasing. This is a 70s vintage denim 4-panel military jet cap. I purchased it about 30 years ago in deadstock condition from a now-defunct famous vintage shop and have stored it at home after only trying it on. Although there are no tags, I purchased it as a military cap. It goes perfectly with flight jackets, military sweatshirts, military chinos, etc. There is a vintage feel, but there are no noticeable stains or damage. There is no size notation, but it's about an L, and the actual head circumference is 58 cm. However, it's shallow, so I usually wear a New Era 59FIFTY size 7 1/2, and this fits just right. It's made of 100% cotton chino cloth, so it should stretch and shrink a little to fit your head.