Old Navy's baby swim trunks are ideal for all babies with there cool colours and fun prints. With adorable designs, baby boy swim trunks will add a little spunk to your baby. Head to the beach or a pool party with your baby looking effortlessly cute in swim trunks for baby boys. Mix and match with the assortment of rashguard tops and quick-drying bottoms in the baby swim trunks collection. Baby boy swim trunks from Old Navy keep your little one comfortable through darling creations.