Personalized Earth Day Natural Conservation T-Shirt. Earth Day T-Shirt - White has tree design with support natural conservation quote for the conservationist and environment activist. graphic c. and licensed from graphicsfactory Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.