Personalized 1st Birthday Party 1 Year Old Girls Toddler Long Sleeve T-Shirt. Babys 1st birthday Toddler Long Sleeve Tee - Charcoal party outfit with daisy flowers and number one 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.