Personalized Perfect Christmas Tree Long Sleeve T-Shirt. A plan of the perfect Christmas tree is a humorous gift design for drafters and engineers during the winter 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