Pugs Not Drugs Mens T-shirt Solid colors (Sand) are 100% Cotton. Heather colors (Green, Blue) are 50% Polyester, 50% Cotton, a Soft Cotton/Polyester blend, medium weight, soft and durable. To best care for printed apparel: Wash in cold water, Hang to dry, Do not feed after midnight. Adult men's US sizes, standard fit and length. Cotton/Polyester blend, medium weight, soft and durable. Machine washable. "Preshrunk" makes the fabric less likely to shrink, but it doesn't mean it won't shrink again, so dry low or air dry. Officially Licensed Gemma Correll Features the adorable pug with words to live by: "Pugs Not Drugs"! Green shirts are great for St. Patrick's day!