Personalized Running Marathon Race Runner Toddler Sweatshirt. Colorful running Toddler Sweatshirt - White is perfect for someone who loves to run in a 5K, 10K, marathon or for fitness. 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