U.S. Auto Parts Network, Inc. (U.S. Auto Parts) is an online sources for automotive aftermarket parts and repair information. The Company principally sells its products, identified as stock keeping units (SKUs), to individual consumers through its network of websites and online marketplaces. The Company’s flagship Websites are located at www.autopartswarehouse.com, www.partstrain.com, www.jcwhitney.com, and www.stylintrucks.com and its corporate Website is located at www.usautoparts.net. The Company offers a range selection of aftermarket auto parts. The Company frequently refine its product offering by introducing new merchandise and updating the existing product selection to offer a more complete and relevant product line and to remove low-selling or obsolete SKUs. The Company classify its products into three categories: body parts, engine parts, and performance parts and accessories. In August 2010, it acquired Automotive Specialty Accessories and Parts (WAG).