Personalized Junior Groomsman Bridal Party Wedding Toddler Long Sleeve T-Shirt. Cute junior groomsman Toddler Long Sleeve Tee - White with mock tux for a little boy in your wedding party. 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.