Some listings describe their swim fabrics as durable and quick-drying. A performance fabric option specifically states it resists chlorine wear and is designed to last longer than ordinary spandex.
Most listings use nylon or polyester blends with elastane for stretch. Common constructions include shells of 82% nylon/18% elastane with 100% polyester linings, and some styles list 80% nylon/20% elastane blends.
Some listings specify UPF 50+ protection, while other styles explicitly note they have no UPF rating.
The inflatable heart-shaped arm bands include weight guidance of 19–30 kg (42–66 lbs) and note that children must be supervised by an adult while in the water.
