"Double denim" refers to wearing two pieces of clothing made of denim fabric, such as jeans and a denim jacket or shirt, at the same time. It is a fashion trend that some people like, while others may think it is outdated or uncool. Full definition
I don't know how about you, but I am absolutely in love with double denim looks. (becomechic.com)
I'd love to know if you are comfortable with double denim or if you still feel a little funny about wearing it? (inspiringwit.com)
Anyway, I can remember wearing double denim looks like this back in the day, so I enjoyed this modern take on a nostalgic look! (distinctlysouthernstyle.com)