Personalized Half Irish Long Sleeve T-Shirt. Half Irish text that is half green with a shamrock dotting the letter i in the word Irish is a humorous gift design for St. Patrick's Day and Celtic festivals. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL