Personalized Brain Cancer Awareness Heart Ribbon Support Toddler Long Sleeve T-Shirt. Brain Cancer heart shaped gray ribbon for awareness and support month walk events on a Toddler Long Sleeve Tee - Black. A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.