Underwear is a layer of clothing worn beneath outer clothes, directly against the skin. Its primary functions are to:

Absorb moisture and keep outer clothing clean.

Provide support and comfort for the body.

Shape the silhouette under clothes.

Serve as a protective barrier.

It comes in a vast array of styles, fabrics (like cotton, silk, or synthetic blends), and designs for all genders and ages. Common types include briefs, boxers, panties, and bras.