Undergarment worn next to the body having legs or leg openings
Look up underpants in Wiktionary, the free dictionary.
Underpants are underwear worn on the lower body generally extending no higher than the navel.[1]InBritish English they are often called simply pants.[2]
Long underpants are the bottom half of a style of two-piece underwear called long underwear, long johns, or thermal underwear, that has long legs and long sleeves, and is normally worn during cold weather; also commonly worn by people under their clothes in cold countries. The male version of a long underwear bottom may or may not have a front fly.
Boxer shorts, boxers, or trunks (Britain),[3] have an elasticated waistband that is at or near the wearer's waist, while the leg sections are fairly loose and extend to the mid-thigh. There is usually a fly, either with or without buttons. The waistbands of boxers are usually wider than those of the various types of briefs, and often bear the brand name of the manufacturer.
Classic briefs have an elasticated waistband at or near the wearer's waist, and leg bands that end at or near the groin. Many briefs feature a fly. They also come in ultra-absorbent varieties.
Bikini briefs are a variation on classic briefs that have less coverage; though typically full coverage of the derrière. Conventionally, they have no fly.
Diapers are a type of underwear worn by young children and those suffering from incontinence. Unlike other briefs, diapers allow the wearer to urinate or defecate without soiling their surroundings. These can be either reusable or disposable.