Personalized 1st Birthday 1 Year Old Girl She is Fierce Toddler Long Sleeve T-Shirt. Cute babys first birthday design says and though she be but one she is fierce on this adorable Toddler Long Sleeve Tee - Charcoal for girls 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.