The Short Sleeved Kids Rash Vest is a practical, lightweight sun-protection top. The fabric has an UPF50+ rating and is quick drying with flat seams making it ideal for swimming and playing outdoors, or to wear under a wetsuit. UV Protect Max. tested up to UPF 50+ Quick Drying. Thanks to the fabric composition, water dries quickly making it great for holiday wear and washing Flat Seams. Combined with a close fit to prevent chafing and provide extra comfort.