Parents, this Poolmaster swim shirt is absolutely brilliant for young swimmers! It combines a UPF 50+ sun protection shirt with built-in arm floaties - so your child gets both flotation support and sun safety in one piece. Perfect for kids ages 4-6 who weigh between 30-50 pounds and are building their water confidence. The EVA closed-cell foam floaties don't require any inflation - they're permanently attached at the shoulders, which allows for full range of motion while swimming. The easy-glide zipper makes getting in and out so simple, and the comfortable stretchy fabric (80% polyester, 20% spandex) allows for growth throughout the season. The floaties are open at the underarm so kids can move their arms freely to practice swimming strokes. What's really great is that they can wear it outside the pool too - the sun protection stays on even when they're taking a break from swimming. The 18x13.4 inch size fits most children in this age range comfortably. It's so much easier than dealing with separate floaties and rash guards - everything is integrated into one piece that's quick to put on and take off. Just remember to rinse it after use and let it dry completely before storing. Whether you're at the pool, beach, or lake, this swim shirt gives you peace of mind knowing your little one has both flotation support and sun protection in one convenient, comfortable package that they'll actually want to wear!