Personalized Groovy Retro I Love My Little Sister Very Much Toddler Sweatshirt. Show your sister some love with our Groovy Retro I Love My Little Sister Very Much design. This fun and cute design features a heart and the words "I love my sister" in a stylish retro font. It's the perfect gift to let your sister know just how much you appreciate her. 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