Lightweight and quick-drying, the Short Sleeve Freestyle Rash Guard provides comfort in and out of the water. A side zip pocket offers a place to keep your keys or other small valuables. The quarter zip neckline allows for easy on and off. Our sun protective swimwear is made from highly saltwater and chlorine-resistant fabrics. These designs, also called rash shirts or rash guards, were originally developed for swimmers on Australia's Great Barrier Reef. They have become the most popular sun protection garments in Australia and block 98% UV (UPF 50+) for maximum UV protection.