The Art Class Swim Trunks for little boys in size 4 are stylish blue board shorts with a fun palm tree pattern. These UPF 50+ swim shorts are made of polyester material and are machine washable for easy care. Featuring a lined interior, UV protection, a back pocket, and a drawstring waist, these swim trunks offer both functionality and style for boys who love to swim and play in the water. Designed by Art Class, these regular fit swim shorts are perfect for a day at the beach or pool.