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 ...

Lululemon has a steep hill to climb. The line between following a trend and illegally copying a design can be quite ...

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

In the latest example, Lululemon filed a lawsuit against Costco on Friday, accusing the wholesale club operator of selling lower-priced duplicates of some of its popular athleisure apparel.

Lululemon has sued Costco, alleging the retailer sells low-cost athleisure apparel knockoffs that unlawfully infringe ...

In the latest example, Lululemon filed a lawsuit against Costco on Friday, accusing the wholesale club operator of selling lower-priced duplicates of some of its popular athleisure apparel.

Lululemon says one of the duplicates that Costco sells is the Hi-Tec Men’s Scuba Full Zip, with the lawsuit showing a screenshot image of Costco’s website showing the item priced at $19.97.