Size 0 is equivalent to extra small Size 1 is equivalent to small Size 2 is equivalent to medium Size 3 is equivalent to large Get ready for your new everyday essential! The Jeanius Fitted Tee is made from our softest ribbed cotton fabric that feels like you've had this shirt for years. It has a flattering crew neckline and is designed to keep its shape throughout the day. Wear with your favorite pair of jeans or trousers. Short sleeve Crew neckline Soft ribbed cotton fabric