The athleisure company alleged in a lawsuit that Costco is selling discounted "dupes" of some of Lululemon's most popular ...

Lululemon sued Costco for selling "confusingly similar" items of its clothing line. In a lawsuit filed on Friday, Lululemon claimed certain Costco products have "unlawfully traded" on the brand's ...

Does your athleticwear from Costco look similar to a Lululemon outfit? That's intentional, a new lawsuit alleges.