Material: Cotton Thank you for viewing. This is a lovely light blue striped shirt that I purchased, but unfortunately, I am selling it because the size doesn't fit. It's 100% cotton and doesn't have any stretch, so it's best suited for those with a slender build. I only tried it on. It has a timeless design that you can wear for a long time. I would appreciate it if you could understand that it has been stored at home. Thank you very much. m(_ _)m