While studying clothes design and technology at the Riga Technical University great attention is paid to the designing of specific collections of clothing for various social and special groups. Designing of any collections starts from statistics and market studies as a result of wich a new segment of buyers is fixed, as well as its volume, needs, preferences, disposable income, character of purchasing, offer and prices in the potential market, as well as the most popular ways of promotion of the appropriate producēt used and fashion trends. Three different ways of making collections are mentioned in the article. The collections are ment for very young and sporty women as well as pregnant women and those with similar changes in their figures.