Personalized Blue Question Mark Long Sleeve T-Shirt. A question mark made of blue hued circles is a fun gift design for puzzlers, daydreamers and the clueless at back to school, birthdays and holidays. 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