Kirkland Signature is now bigger than some of the world’s biggest companies—and it has become essential to Costco’s business.

THEY say imitation is the sincerest form of flattery, but what happens when it veers into outright theft? Read more at The ...

Shoppers are happy to buy products that look just like high-end items, but are priced for way less. But experts say that ...

Costco’s viral jogger moment is just the latest example of how deep dupe culture runs and how much trust the brand has earned ...

Costco Wholesale Corporation (NASDAQ:COST) is one of the 12 best consumer goods stocks billionaires are quietly buying. On ...

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

In a lawsuit against Costco over a variety of apparel designs, the athleisure brand laments the proliferation of ...

Fashion "dupes," or less expensive versions of high-end clothing and other accessories, are just about everywhere these days.

Lululemon Athletica claims in its lawsuit filed in the U.S. District Court for the Central District of California that Costco ...

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