Personalized Sister of the Groom Toddler Sweatshirt. Sister of the Groom Toddler Sweatshirt - White. For the one who knows the groom best! Keep your little one cozy and stylish with this soft and durable toddler sweatshirt. Designed for comfort and ease of movement, it features a classic fit with ribbed cuffs and hem for added warmth. Perfect for everyday wear, playtime, or chilly outings, this sweatshirt is made to withstand the adventures of an active toddler