The three-year-deal worth around £2.5 million per-year will see all West Ham shirts branded with the XL logo, a bespoke XL design covering the entire roof of the East Stand and branding on the state-of-the-art LED pitch perimeter advertising system during matches.
Chairman Eggert Magnusson is delighted to have tied up a growing sponsor. He told the official site, "West Ham United is delighted to announce XL.com as our new Principle Partner. They are an organisation very similar to ours in their values and aspirations for the future and a brand that we are proud to be associated with. We look forward to a long and successful partnership."