Rashguards are essential pieces of water sports apparel designed to protect the skin from sun exposure, irritation, and chafing. Made from lightweight, quick-drying, and stretchy materials like spandex or polyester blends, rashguards offer a comfortable, snug fit that moves with the body. Originally popularized by surfers to prevent board rash, they are now widely used in activities such as paddleboarding, kiteboarding, snorkeling, and swimming. Whether worn alone or under a wetsuit, rashguards add an extra layer of comfort and protection in and out of the water.