Personalized Colorguard Toddler Long Sleeve T-Shirt. Colorguard text with a flag taking the place of the letter L is a fun colorguard gift design for back to school, birthdays, holidays marching band and winter guard season. 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.