The role of the seller is to properly describe the sizes, compare them to the length of a foot in centimeters and inform how to estimate the accurate size. It will increase the level of trust of a customer and allow for conscious shopping. A "size chart" function comes in handy. Our graphic department, during the implementation process, can prepare the appropriate way to display tables and information how to measure a shoe. In addition, it is worth to commission the preparation of a print scheme in a PDF format. Due to it, a customer can easily determine one's size for a particular shoe brand.