Personalized Arbor Day Root For Trees Long Sleeve T-Shirt. Earth Day or Arbor Day I root for trees Long Sleeve T-Shirt - White for the conservationist nature enthusiast. 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