Lululemon is accusing Costco of stealing from its "path-breaking" brand by selling dupes of its sweatshirts, jackets and ...

In the 49-page lawsuit filed in California, Lululemon shows the alleged design similarities of its products with Costco’s, as ...

In a lawsuit filed Friday in the U.S. District Court for the Central District of California, Lululemonclaims that certain ...

The Vancouver-based athleisure brand filed a lawsuit on Friday, saying Costco had created "confusingly similar" dupes of its most popular products.