Those Reebok sneakers that promise “better legs and a better butt with every step” may be just like every other sneaker, federal regulators said Wednesday, and Reebok International is on the hook for $25 million in customer refunds for making false claims about its EasyTone line.

Despite agreeing to the settlement, Reebok, a unit of Adidas, said it did not concur with the agency’s conclusions.

Just wearing the sneakers, Reebok said, would tone and strengthen a customer’s legs 11 percent better than regular walking shoes and sculpt bottoms 28 percent better.

Customers who bought EasyTone shoes can fill out an application for a refund at the FTC’s website, at www.ftc.gov.