Personalized 2nd Birthday Boy Outfit Submarine Toddler Sweatshirt. Cute submarine with number 2 for a toddler boy celebrating his second birthday party. 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