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

Joe Ng, CEO of fashion studio Shift, said Lululemon's pants may have inspired Costco's, but the design isn't as unique as a ...

The Canadian athleisure brand has accused the warehouse club operator of copying at least six of its products, including its ...

Cheaper look-alikes have been around for years, but social media has made them more popular. Dupes can move into shaky legal ...

Lululemon Athletica claims in its lawsuit filed in the U.S. District Court for the Central District of California that Costco has “unlawfully traded” on its reputation, goodwill and sweat equity by ...

Canadian athletic wear maker Lululemon sued Costco in California federal court on Friday, alleging that the wholesaler sells ...

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

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

In an era of design dupes, of course the court of public opinion is siding with Costco. On June 27, Lululemon filed a lawsuit alleging that Costco has infringed on its copyright with several “knockoff ...

Lululemon has filed a lawsuit against Costco claiming that the membership-based wholesale retail company sold similar ...

Lululemon, a premium athleisure company based in Vancouver, Canada, filed its lawsuit against Costco on June 27 in California ...

Lululemon filed a lawsuit against Costco over Kirkland brand products that allegedly copy its Scuba hoodies, Define jackets ...