Since a dupe is an unaffiliated similar product (or even unauthorized copy), this registration — first reported by The Fashion Law — is a real doozy. Is this a legal innovation in shutting down dupes ...

Lululemon is suing Costco, alleging that the warehouse chain is undercutting its business by selling “knockoff” versions of its iconic athleisure clothes for less. “Plaintiff lululemon athletica ...

Lululemon Athletica Inc. has taken another step to deter people from producing knockoffs of its athleisurewear.

A growing demand for dupes is not lost on retailers, and many are pressuring manufacturers to keep up, but there are risks.

Fashion “dupes,” or less expensive versions of high-end clothing and other accessories, are just about everywhere these days. They’re also drawing some businesses into legal battles. In the latest ...

NEW YORK (AP) — Fashion “dupes,” or less expensive versions of high-end clothing and other accessories, are just about everywhere these days. They’re also drawing some businesses into legal battles.

Lululemon is known for athleisure clothing and said that Costco uses makers of popular brands to make similar items for its private Kirkland brand, which leads shoppers to believe that Kirkland items ...