For background, let’s go to Alexander Aciman’s exhaustive comparison of a pair of two pairs of pants: one sold by lululemon, and one sold under Coscto’s in-house brand Kirkland Signature. This was ...

Lululemon Athletica claims in its lawsuit filed in the U.S. District Court for the Central District of California that Costco ...

In a lawsuit filed Friday, Lululemon claimed Costco was violating its patents by selling “knockoff” versions of its pants, hoodies and jackets.

Lululemon has filed a lawsuit against Costco that accuses the wholesale club operator of selling lower-priced duplicates of ...

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

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

Lululemon is suing Costco, alleging that the discount wholesaler is selling knockoffs of its $128 pants and other pricey athleisure clothing.

In a lawsuit filed Friday, Lululemon claimed Costco was violating its patents by selling “knockoff” versions of its pants, hoodies and jackets.

California resident Sadie Novotny is seeking millions in damages from Costco, claiming that a heavy liquor cabinet fell on her at the retailer's Santa Rosa location.

In a lawsuit filed Friday, Lululemon claimed Costco was violating its patents by selling “knockoff” versions of its pants, hoodies and jackets.

Lululemon is suing Costco, alleging that the discount wholesaler is selling knockoffs of its $128 pants and other pricey athleisure clothing.

Lululemon is suing Costco, alleging that the discount wholesaler is selling knockoffs of its $128 pants and other pricey athleisure clothing. In a lawsuit filed Friday, Lululemon said Costco has ...