Learn how we test. From Fashion Week to the GLAMOUR office to your local gym, let's face it, everyone is wearing Adidas – whether it's one of the brand's iconic tracksuits or the still-beloved Sambas.

Blake Lively revealed that the Adidas x Balenciaga tracksuit she wore also functioned as footwear. “Last week I left my kids for the first time ever and wore pants that were shoes,” the ...