Keep your little one safe and stylish with this newborn baby boy swimming costume, complete with a sun hat! Featuring a long-sleeve zip-up design, this one-piece swimsuit offers excellent sun protection and doubles as a rash guard. Made from 100% polyester, it’s easy to care for—just machine wash at 30ºC and avoid bleach, dry cleaning, or tumble drying. For the perfect fit, check our size chart in the product images. Each set includes one swimsuit and one sun hat, ready for splashy adventures!