Mashed Clothing Grandpasaurus Rex Adult T-Shirt Premium heavyweight 6.1 ounce 100% cotton. Short sleeves. 6.1 oz., pre-shrunk 100% cotton (Dark Heather is 50/50 cotton/polyester) Short sleeve shirt details: Small = 18 inches wide and 28 inches long; Medium = 20 inches wide and 29 inches long; Large = 22 inches wide and 30 inches long; X-Large = 24 inches wide and 31 inches long; 2X-Large = 26 inches wide and 32 inches long; 3X-Large = 28 inches wide and 33 inches long; 4X-Large = 30 inches wide and 34 inches long; and 5X-Large = 32 inches wide and 35 inches long. Makes a great gift!