The U.S. Polo Assn. Kids Swim Shorts in blue, white, and red are designed for boys in size XS (4-5). Made from polyester, these swim shorts feature a built-in boxer for added comfort and coverage. The colorful design, featuring a red, white, and blue flag, makes them a fun and stylish choice for recreational activities like swimming or playing at the beach. Easy to care for with machine washable instructions, these swim shorts are a great addition to any young boy's summer wardrobe.