Personalized My 1st Marathon Fitness Running Toddler Sweatshirt. My 1st marathon Toddler Sweatshirt - White has cute fitness themed running design that makes a great souvenir. 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