Match My Fly - Men short sleeve t-shirts (variety colors) Our heathers t-shirts are made from a 60% cotton / 40% polyester blend and are available in five different sizes. All heathers t-shirts are machine washable. The lightweight heather fabric is crafted with quality materials to ensure lasting comfort and breathability. With five sizes to choose from, you can find a perfect fit. Plus, all heathers t-shirts are easy to care for - simply machine wash and wear.