The Gap, headquartered in San Francisco, is the largest specialty apparel retailer in the United States with more than 3,400 stores. It sells men's, women's and children's clothing and accessories. The location at 81 Hillside Road contains GapBody, GapKids and babyGap. This large, well-lit store has 12 dressing rooms equipped with buttons to summon a salesperson if assistance is needed.