Personalized Green Awareness Ribbon Hope T-Shirt. Green Awareness Ribbon T-Shirt - White with slogan that says Working for a cure, holding on to Hope. For leukemia, gastroschisis, kidney cancer, liver cancer support. 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.