A cotton bra is a type of bra that is made primarily from cotton fabric. Cotton is a soft, breathable, and natural material that is often favored for its comfort and ease of care. Cotton bras are often used as everyday bras or for lounging as they are gentle on the skin and reduce the risk of irritation and itching. They are also often preferred for their absorbent properties, making them a popular choice for women who are prone to sweating or experience discomfort in synthetic materials. Cotton bras are available in a variety of styles, including sports bras, wireless bras, and balconette bras. Some cotton bras may also contain a small amount of spandex or elastic for added stretch and support.