Personalized Multiple Myeloma Cancer Awareness Toddler Long Sleeve T-Shirt. Multiple Myeloma Burgundy Ribbon Awareness Toddler Long Sleeve Tee - Black is a great way to show support. Wear at a Multiple Myeloma cancer walk. 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.