As of 2010, shoes accounted for about 80% of Zappos' business.[36] As of 2007, Zappos had expanded their inventory to include clothing, handbags and other accessories, which accounted for 20% of annual revenues. Zappos executives stated that they expected that clothing and accessories would bring in an additional $1 billion worth of revenue, as the clothing market is four times the size of the footwear market.[36][37][38]