7-Eleven is expanding its e-commerce options by partnering with Palo Alto, CA-based restaurant delivery service DoorDash.More than 200 7-Eleven stores in Chicago, Los Angeles and New York this month began selling non-alcoholic beverages, OTC medications, packaged and prepared foods, and household products through DoorDash’s mobile application and website (doordash.com). Along with purchasing individual items, consumers can also buy "Convenience Packs" that group a mix of private-label, national brand and prepared food SKUs together for purchase based on occasion such as "Gameday" and "Date Night." The composition of the packs varies by market. DoorDash delivery fees vary by city, but are currently set at $2.99 for 7-Eleven customers. The retailer plans to expand the service to Boston and Washington, D.C.“By working with DoorDash, we can bring on-demand delivery to more people and more places,” said Raja Doddala, 7‑Eleven’s vice president of innovation and omnichannel strategy, in a media release. “This partnership between the world’s largest convenience store chain and a leading on-demand delivery startup can redefine convenience. DoorDash’s technology, data analytics and commitment to the customer experience impresses us and makes them a great match for 7‑Eleven’s omnichannel initiatives.”The new service is 7-Eleven’s second foray into e-commerce, following a partnership with Postmates in July.