A bib is a piece of fabric or material that is worn over clothing to protect it from stains, dirt or other forms of damage. It typically has an opening for the neck and is designed to cover the front of the garment, with extra length in the back to prevent soiling. Bibs are commonly used by young children during mealtimes to catch any food that may spill or drip from their mouths. They can also be worn as a protective measure when engaging in messy activities such as painting or playing in mud.