Introducing our penguin color changing boys swim trunks by Holly and Beau - a playful blend of fun and functionality! These boys swim trunks magically change color when coming into contact with water, returning back to the original white when dry. Creating an exciting and magical poolside experience for your little ones Elastic waistband ensures a comfortable fit and crafted from high-quality quick drying recycled polyester. Add a splash of color and magic of your little ones swimming adventures with these color changing swim trunks by Holly and Beau. - Super-soft, quick-dry microfiber outer and soft mesh lining - Swim trunks are made from recycled polyester - Two side pockets - Machine wash cold, do not tumble dry