Personalized San Diego Vacation Cute Beach Toddler Long Sleeve T-Shirt. This cute vacation travel design says San Diego time and makes a fun trip souvenir for kids. 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.