An undershirt is a type of clothing worn beneath a shirt or blouse. It is typically made from soft, breathable fabrics like cotton or a cotton blend, providing comfort and moisture-wicking properties. Undershirts help to absorb sweat, protect outer garments from body oils, and can add an extra layer of warmth in cooler weather. There are various styles of undershirts, including tank tops, crew necks, and V-necks. They come in different colors and sizes to suit individual preferences. Many people wear undershirts for added comfort, to enhance their outfit, or for modesty under sheer clothing.