A rash guard is a fitted athletic top designed to protect the skin during sports and outdoor activities. Made from stretchy, quick-drying fabrics like polyester or spandex, it ensures comfort and flexibility. It helps prevent rashes, chafing, and sunburn caused by friction or UV exposure. Rash guards are commonly used in surfing, swimming, martial arts, and fitness training. They provide muscle support while allowing a full range of motion. Available in short-sleeve, long-sleeve, and sleeveless styles, they suit different needs. A rash guard is a durable, functional, and stylish performance wear essential.