As it expands beyond its focus on electronics and appliances, the online retailer Alza.cz reports an increase of 75 percent in its total sales of winter sports goods. Surprisingly enough, it saw the greatest increase in the sale of cross-country skis (162%) and boots (192%). But its earner came from downhill skis, which were responsible for 21% of all its winter goods sales. Alza is pushing for growth across the board when it comes to sporting goods, including sports supplements and electronic wearables. Its biggest seller in this range are Xiaomi Mi Band 3 fitness bands, of which it sold 30,000 during the winter.