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A jockstrap (also known as a jock, jock strap, strap, supporter, or athletic supporter) is an undergarment originally designed for supporting the male genitalia during sports or other vigorous physical activity. More recently, 'fashion jockstraps' have become popular as regular underwear worn by men as an alternative to other styles. Jockstraps for athletic purposes are most commonly worn in North America. A jockstrap consists of a waistband (usually elastic) with a support pouch for the genitalia and two elastic straps affixed to the base of the pouch and to the left and right sides of the waistband at the hip. The pouch, in some varieties, may be fitted with a pocket to hold an abdominal guard (impact resistant cup, box) to protect the testicles and the penis from injury. Fashion jockstraps follow the design of sports models but appear in a variety of colours and fabrics. ==Etymology== The word 'jockstrap' has purportedly been in use at least since 1888, a likely contraction of 'jockey strap', as the garment was first designed for bicycle-riding messengers and deliverymen, or 'bike jockeys'. The Bike Jockey Strap was the first jockstrap manufactured in America in 1874.〔 (archived from (the original ) on 2007-11-24).〕 Jockey meaning 'rider', primarily a race horse rider, has been in use since 1670.〔(【引用サイトリンク】title=Jockey )〕 Jockey itself is the diminutive form of the Scots nickname Jock (for John) as Jackie is for the English nickname Jack. The nicknames Jack and Jackie, Jock and Jockey have been used generically for 'man, fellow, boy, common man'. From the period c.1650-c.1850, 'jock' was used as slang for penis.〔(【引用サイトリンク】title=Jock )〕 The more recent American slang term 'jock', meaning an athlete, is traced to 1959 and is itself derived from 'jockstrap'.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「jockstrap」の詳細全文を読む スポンサード リンク
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