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 ...

Lululemon has accused Costco of selling unlicensed knockoffs of popular products like the Scuba pullovers and ABC Pants.

Lululemon is suing Costco for allegedly infringing on its trademarks and design patents by selling dupes of its clothes.

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.

In a 49-page complaint, Lululemon accused Costco of blatantly ripping off some of its most recognizable styles.

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Fashion “dupes,” or less expensive versions of high-end clothing and other accessories, are just about everywhere these days. In the latest example, Lululemon filed a lawsuit against Costco on ...