Get your little boy ready for some fun in the sun with these Speedo Boys Learn to Swim Jammer Trunks. The trunks are designed with a solid black pattern and feature a built-in brief, drawstring, and comfortable fit, making them perfect for swimming. The trunks are made of durable nylon material and offer UPF 50+ protection, ensuring your child stays safe and comfortable while swimming. These trunks are size 4 and have a regular size type. The Speedo brand is well-known for its quality swimwear, and these trunks are no exception. New with tags and free shipping.