Personalized Thailand Flag Thai Gift Long Sleeve T-Shirt. Thailand flag Long Sleeve T-Shirt - Black for anyone from Thailand has message that reads Thai that means I'm awesome 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