In clothing, a suit is a set of garments made from the same cloth, usually consisting of at least a jacket and trousers. Lounge suitsare the most common style of Western suit, originating in the United Kingdom as country wear. Other types of suit still worn today are the dinner suit, part of black tie, which arose as a lounging alternative to dress coats in much the same way as the day lounge suit came to replace frock coats and morning coats; and, rarely worn today, the morning suit. This article discusses the lounge suit (including business suits), elements of informal dress code.

The variations in design, cut, and cloth, such as two- and three- piece, or single- and double- breasted, determine the social and work suitability of the garment. Often, suits are worn, as is traditional, with a collared shirt and necktie. Until around the 1960s, as with all men's clothes, a hat would have been also worn when the wearer was outdoors. Suits also come with different numbers of pieces: a two-piece suit has a jacket and the trousers; a three piece adds a waistcoat; further pieces might include a matching flat cap.

Originally, as with most clothes, a tailor made the suit from his client's selected cloth; these are now often known as bespoke suits.

The current styles were founded in the revolution during the early 19th century that sharply changed the elaborately embroidered and jewelled formal clothing into the simpler clothing of the British Regency period, which gradually evolved to the stark formality of the Victorian era. It was in the search for more comfort that the loosening of rules gave rise in the late 19th century to the modern lounge suit.he man.

Now as many High-grade goods, the suit also have itself brand tag, not only paper tag but also with some plastic seals too. Plastic seals can enhance quality of suit, so many designer will design there brand tags withplastic seals just like a set.