Calvin Klein was established in 1968 in New York City. In the 1980s, the brand revolutionised the market of men’s underwear, when most of the products were white, and it insisted on the fact that “men should care about the brand they wear”. Calvin Klein then started to offer many collections highlighting briefs, but in a modern way. Throughout the years, the brand became famous all around the world thanks to its high quality and prestige. CK One is the brand’s reference line in underwear. These undergarments, which are made from soft and breathable cotton with a touch of spandex and a microfibre waistband for greater comfort, are very successful among both men and women. The addition of spandex makes them extremely soft, which is very much appreciated.