Personalized Bear Hug Future Sister Toddler Long Sleeve T-Shirt. Future big sister Toddler Long Sleeve Tee - Black with a swirl of pink and red hearts and a cute teddy bear hugging her new little sister or brother. She says I'M GOING TO BE A BIG SISTER! 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.