Discover a brand new way to have fun in the sun with Babyganics swim diapers. Our disposable swim diapers cover and protect in the pool, ocean, lake (or puddle!) and feature a special sun-sensing scenery that changes with initial and prolonged UV exposure. Colors appear and change while your baby does their baby-playing thing in the sun! these comfy, slip-on swim diapers are made with a sustainable core material, they won't swell or sag, and they offer UPF 50+ protection. Splash, splash and explore till you run out of giggles, baby. We've got you covered! for best color-changing results, keep all diapers in the original package or away from light until ready for use. Based on controlled UV exposure emulating direct exposure to Florida sunshine, mid-summer, mid-day. Timing of color change may vary based on location, altitude, time of day and year. Intended only as a reminder to re-apply sunscreen and be sun-safe! always follow your sunscreen directions.