SwimZip's boys' swim trunks are perfect for the beach or the pool! Overflowing with thoughtful features, your little guy will never want to take his trunks off! All of our swimwear is made of the highest-rated, most comfortable UPF 50+ sun protective fabric which blocks 98% of the sun's harmful UVA & UVB rays for maximum sun protection. He'll love the 4-way stretch for extra freedom of movement and flat seams to help reduce rubbing. You'll love that the quick-drying and chlorine-resistant fabric. Our boy's swim trunks feature an elastic waistband and adjustable tie waist drawstring closure for flexible sizing, two side pockets and one back patch pocket, perfect for all the sea treasures, eyelets at the center back waist and back pocket to avoid air buildup when cannonballing, and soft jersey linear for extra security and comfort.