A condom is a thin, flexible sheath made from materials like latex, polyurethane, or polyisoprene. It is designed to cover the penis during sexual intercourse to prevent pregnancy and reduce the risk of sexually transmitted infections (STIs). Condoms are available in various sizes, textures, and flavors, making them a popular choice for safe sex. To use a condom effectively, it should be put on before any genital contact occurs. Proper storage is essential; condoms should be kept in a cool, dry place and checked for expiration dates. When used correctly, condoms are a reliable method of contraception and protection against STIs.