Briefs have various different styles, usually with a waistband attached to fabric that runs along the pelvis to the crotch and buttocks, and are worn by both men and women. Swim briefs are a variation used as swimwear.
Classic briefs were first sold on January 19, 1935, by Coopers, Inc., in Chicago, Illinois, at Marshall Field's department store. They dubbed the new undergarment the "Jockey", because it offered a similar degree of support as the jockstrap (one style of which is also called jock brief or support briefs). The designer of the new style was reportedly inspired by a postcard he had received from a friend visiting the French Riviera depicting a man in a very short, form-fitting bathing suit. 30,000 pairs were sold within three months of their introduction.In the UK, briefs were first sold in 1938. Soon, shops were selling 3,000 pairs of briefs per week.
In North America, "jockey shorts" or "jockeys" became an often used generic term for men's briefs. More recently, "tighty-whiteys" (and some less popular variants of it) has become a commonly used slang term for traditional full-cut briefs.
In the UK, the term "jockeys" has not caught on and briefs are often referred to as "Y-fronts". The term derives from the genericized trademark "Y-Front", property of Jockey International. It in turn derives from the inverted Y-shape formed by the seams at the front of the underpants. The colloquialism is used even when the fly opening may differ in style, and not actually form the shape of the inverted letter "Y" fly on Coopers/Jockey brand briefs.
In Australia, briefs are referred to as "jocks" but should not be confused with jockstraps (more specifically used by athletes) which expose the buttocks. Australians generally use the word "briefs" to refer to the bikini-style underpants for men, which do not have the Y-front opening.
In the 1960s, fashion underwear was introduced in the United States, and, after a period of decline, became more prominent in the 1970s as the belief that wearing fashionable underwear was less masculine declined. By the 1980s, fashion briefs became more popular in the United States; in 1985 they made up 25% of the men's underwear market, whilst they had almost no share circa 1980. The Underoos and Funpals fashion brief brands for children were introduced around that time. According to Hanes marketing director John Wigodsky, women purchased fashion briefs for their husbands for aesthetic reasons, and therefore fashion briefs became more popular with men.
During the 90's to early 2000's the popularity of briefs declined. Boxer shorts were widely portrayed as the casual and masculine choice. However, more recently, as men's fashion has trended in favor of more tailored clothing, form-fitting underwear such as briefs have come back into style, including newer styles like trunk briefs (short boxer briefs).
Traditional size briefs for both sexes cover the upper part of the thigh and extend upward up to (or cover, depending on the design) the navel at the waistband. This style is often referred to as "full rise" or "full cut". There are also "low rise" and "mid rise" styles whose measurements vary between manufacturers.
Men's briefs often feature a fly--a covered opening on the front of the garment which allows for convenience in urinating. There are several different fly designs in common use, including the standard vertical fly, the horizontal fly, the Y-front fly, and others. The use of a fly is optional, and many styles do not utilize a fly at all.
Unlike boxer shorts, briefs hold the wearer's genitals in a relatively fixed position, which make briefs a popular underwear choice for men who are participating in athletic activities or who prefer more support than loose-fitting underwear can provide. In addition, boxers and boxer briefs often ride up the body uncomfortably when the wearer is running or wearing form fitting attire. There are variations on the brief with different cuts, some offering a wider leg and others a narrower leg, names including low-rise, mid-rise, full-rise (often stigmatized as being 'tighty-whiteys' as they are considered the least flattering fit for the less-than-average physique), sport, active, bikini. Some briefs have the cut all the way to only the waistband on the side, called a tanga brief.
Briefs also refers to a style of women's and girls' panties that is typically cut with a high waist to provide full coverage of the hips and buttocks. A control brief is a kind of high-waisted panty girdle. French-cut or high-cut briefs expose more of the front part of the thigh, while boy briefs have short legs, similar to men's trunk briefs, often combined with a lower waist.
Briefs is also the name given to costumed outerwear worn by female dancers and athletes in sports such as cheerleading, figure skating, and tennis. These briefs are typically worn under a short skirt; they may be attached to the skirt or dress body, or a separate garment ("cheer briefs").
Studies related to tight underpants and male infertility are inconclusive as there are many studies which contradict one another. Tight fitting underwear like briefs have been blamed for negatively affecting semen analysis, since they may interfere with the cooling of the testes. However, not all research has come to the same conclusion. A study in the October 1998 Journal of Urology, for example, concluded that underwear type is unlikely to have a significant effect on male fertility.
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