Personalized 40th Birthday Cowgirl Long Sleeve T-Shirt. 40th Birthday Cowgirl Long Sleeve T-Shirt - Pink gift with pink and black cowboy boot design and this cowgirl is 40 quote. 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