These shirts are high quality, tri-blend (cotton, rayon, polyester) and made in the USA. They are comfortable, and durable, so you'll look good and feel good. I print on them using a process that will stand up to the abuse of washing machines and dryers. All my products come with a 30-DAY MONEY-BACK GUARANTEE. Absolutely love your purchase, or I'll return every penny. IMPORTANT: Apparel takes 1-2 weeks production time before it ships to you. I continually update my inventory with fresh designs. So don't wait to order yours! Have any questions? Just send me a message. I'll get back to you asap. I am happy to take special requests and do personalized orders. Here's the sizing chart: (numbers in inches as measured when the garment is flat) Sizing S M L XL 2XL Width 17.25 19.25 21.25 23.25 25.25 Length 25.5 26 27 28 28.5