Buying clothes online is fast - but often the garments are sent back just as quickly. Returns cost companies lots of money and the transports burden the environment and the climate. The start-up dressLife is taking advantage of the opportunities provided by a Big Data analysis to reduce return deliveries and spare customers disappointments. To this end, customers only have to provide their height, gender, and weight. Then a software program determines which size really fits the customer based on digital patterns, among other things. Thanks to Avatar the person can also try on the desired item virtually.