Adjustable Drawstring Waist : A comfy drawstring waist allows for a customizable fit, keeping your child comfy and secure while they play. Built-In Swim Net Underwear : Designed for little swimmers, the built-in net lining offers a gentle and comfortable layer inside the swim shorts, allowing for easy movement so your child can splash and play freely. Matches Boys 2 Match Swim Shirts : The Boys 2 Match Drawstring Swim Shorts are made for endless fun! With a comfy built-in swim net underwear, an easy drawstring waist, and a handy back pocket, they’re perfect for active kids. Mix and match with our Boys 2 Match Swim Shirts—select prints come in men’s for family matching! Chlorine & Fade Resistant : Built for durability, this fabric resists chlorine and fading, ensuring vibrant colors that last all summer long. UV Protection / Built-in UPF 50+ : Made with built-in 50+ UPF sun protection to keep your little one safe while they enjoy fun in the sun.