Personalized 1st Birthday Bear On Bicycle 1 Year Old Toddler Long Sleeve T-Shirt. Cute babys 1st birthday Toddler Long Sleeve Tee - Charcoal with bear on a bike and 1 balloon for a boy or girl first birthday party. 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.