Though different textile colors and patterns changed from year to year, the cut of a gentleman's coat and the length of his waistcoat, or the pattern to which a lady's dress was cut, changed more slowly. Men's fashions were largely derived from military models, and changes in a European male silhouette were galvanized in theaters of European war where gentleman officers had opportunities to make notes of foreign styles such as the "Steinkirk" cravat or necktie.
In the fashion industry, intellectual property is not enforced as it is within the film industry and music industry. Robert Glariston, an intellectual property expert, mentioned in a fashion seminar held in LA[which?] that "Copyright law regarding clothing is a current hot-button issue in the industry. We often have to draw the line between designers being inspired by a design and those outright stealing it in different places." To take inspiration from others' designs contributes to the fashion industry's ability to establish clothing trends. For the past few years, WGSN has been a dominant source of fashion news and forecasts in encouraging fashion brands worldwide to be inspired by one another. Enticing consumers to buy clothing by establishing new trends is, some have argued, a key component of the industry's success. Intellectual property rules that interfere with this process of trend-making would, in this view, be counter-productive. On the other hand, it is often argued that the blatant theft of new ideas, unique designs, and design details by larger companies is what often contributes to the failure of many smaller or independent design companies.