Luxury athletic wear maker Lululemon is suing warehouse giant Costco over alleged "knockoffs" or "dupes" ‒ cheaper copies of popular items ‒ sold by the warehouse giant. Lululemon filed the ...

Luxury athletic wear maker Lululemon is suing warehouse giant Costco over alleged "knockoffs" or "dupes" ‒ cheaper copies of popular items ‒ sold by the warehouse giant. Lululemon filed the lawsuit in ...

Jefferies analysts said Lululemon is straying further away from its yoga roots with designs similar to generic apparel brands, like the Gap.