Cotton underwear is breathable and absorbent. Silk and satin panties trap moisture, which allows bacteria to grow and can cause possible infections. Even if the crotch of your silky underwear is cotton, it’s probably not enough.

Cotton underwear is soft and easily stretches, making it a comfortable fabric to wear. Due to its softness and comfort, it is often used in underwear and undershirts, according to the International  Forum for Cotton Promotion.These are the reasons why many people like cotton underwear.