Throughout history, people have used fashion as an indicator of social class and status, and as a gauge for their own style. Today, we can see a range of new trends in clothing, from gender-free collections to clothes that block cell phone radiation. The world of fashion is a vast industry, with millions of people designing, sewing, and dyeing clothing each year. Despite this, many traditional clothes and styles are still in use, and the trend toward customized clothing is growing. Fast fashion is a major trend in the fashion industry. Until the mid-1990s, clothing was mainly produced and sold once a year. Today, however, this isn't the case. In fact, fast fashion is a constant cycle that continues every year. It begins with a seasonality in the style of clothing, and ends with a fad, or season, and ends with the same trend in a few months. This means that the fashion industry needs to innovate to stay competitive. Athleisure wear is a hybrid between streetwear and athletic attire. It is a trend that began in the late 1990s and has been gaining ground in recent years. Designed to be both functional and comfortable, athleisure clothing can instantly boost a look. In fact, this clothing category was recently recognized by the Merriam-Webster dictionary. In 1977, Lululemon released the first pair of Boogie Pants.