Zappos, an online footwear and clothing shop based in Las Vegas, Nevada. Its primary selling base is shoes, which accounts for about 80% of its business. Presently, Zappos stores are selling about 50,000 varieties of shoes, from brands like Ugg boots, ALDO Shoes, Nike, and Steve Madden heels. Zappos sells various types of footwear including soccer cleats, running shoes, dress shoes, basketball shoes, high heels, slippers, sandals, and even Crocs. They also serve the niche shoe markets, including narrow and broad widths, hard-to-find sizes, American-made shoes, and vegan shoes.