This navy blue Jcrew ludlow blazer is very lightweight and so is perfect for warmer weather! The outer part of the jacket is 98% cotton and 2% elastane. The lining is polyester. I bought it new with tags off eBay last August and have taken good care of it since. It is in excellent condition, and has been dry cleaned prior to listing. I am selling it because my chest has broadened and so it doesn't fit me as well anymore. The size is 38S. Please let me know if you would like any additional measurements! From a smoke and pet-free home.