Reebok has chosen Boston’s Seaport District as the home of its new headquarters. The athletic gear maker, which is currently based in Canton, said Wednesday it will occupy 220,000 square feet and five floors of space at the Innovation & Design Building by next fall. About 700 employees will work from the office. The location will feature a two-floor, 30,000 square foot gym with a CrossFit box, multiple studio spaces, a boxing ring and other state-of-the-art fitness center amenities. In addition, Reebok plans to create a one-mile running track around the facility for public use. The new headquarters will also feature a farm-to-table cafe and an 8,000-square-foot Reebok FitHub retail store, both of which will also be open to the public. Other amenities will include personal trainers, onsite dietician, acupuncture, massage therapy, physical therapy and many other employee-focused services. Read more at Boston Business Journal.