The fashion industry is the most popular product category in online commerce in most countries. High returns, often exceeding 50%, form an integral part of the e-commerce business in this industry. Fashion industry e-retailers must not only skillfully calculate the cost of logistics service of multiple shipments and returns of the same clothes, but even accept a certain percentage of losses when a given product requires serious repairs after 2-3 deliveries to the Customers, before it can be finally sold. Regularly changing collections and large seasonal peaks also pose a big challenge. Additionally, fashion customers expect fast deliveries and efficient returns handling. All this means that a high initial margin remains crucial for the effective marketing of fashion products.