Swim caps are tight-fitting head coverings made from materials like silicone, latex, or lycra. They are designed to keep hair dry and reduce drag while swimming, making it easier for swimmers to move through the water. Swim caps are commonly used in competitive swimming, but they are also popular among recreational swimmers. In addition to their practical benefits, swim caps can help protect hair from chlorine damage in pools. They come in various sizes, colors, and designs, allowing swimmers to express their personal style. Many swim teams require their members to wear caps during practice and competitions.