Personalized Monogram U Chevron Letter Initial Toddler Long Sleeve T-Shirt. Monogram Letter U orange chevron zigzag striped alphabet initial on a Toddler Long Sleeve Tee - Heather gift for someone whose name begins with the initial U. 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.