We're Team Oxford Comma because there's a difference between "We took a walk with our dogs, Grandma, and Grandpa" and "We took a walk with our dogs, Grandma and Grandpa." Now you can announce your linguistic values as well! The T-shirt comes as a preshrunk 90/10 cotton blend, and the sweatshirt is a 50/50 cotton blend. Both available in unisex sizes S, M, L, XL, 2X, and 3X. (Imported.)