I Understand But Don't Care T-Shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat Yes, this I Do Understand But I Really Don't Care Tee Shirt is a nice joke novelty shirt. This is a cute shirt making a little joke by stating what just may be true. If you understand something, but just want to have some fun, this shirt is for you. It also makes a great gag gift. Lightweight, Classic fit, Double-needle sleeve and bottom hem