Personalized Spinal Muscular Atrophy Awareness Long Sleeve T-Shirt. Spinal Muscular Atrophy SMA awareness Long Sleeve T-Shirt - Charcoal says research, fight, hope, overcome for an August awareness month event. 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