Personalized Yarn Pirate Long Sleeve T-Shirt. Yarrrn! A pirate skull made out of yarn, with knitting needles as crossbones. Funny gift for anyone who loves knitting and pirates! 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