Adidas Originals is a line of casual sports apparel, and is the heritage line of adidas. The brand uses the famous Trefoil logo, which was originally used on all adidas products until the company decided in 1997 that the trefoil logo would thereafter only be used on heritage products, and was replaced on other products by the Performance logo, which has previously been used on the "Equipment" range of products since 1991. Adidas Originals covers sports fashion styles with strong references to the decades between the 1940s to 1980s. The brand has a distinctively retro old school feel.

An extensive campaign was launched in 2008 to promote the label. "adidas Originals invites today’s lifestyle consumers to Celebrate Originality through an exceptional brand campaign and a variety of product themes inspired by the rich sporting heritage of adidas and the global reach of the Trefoil."