Kirkland Signature Organic Extra-Virgin Olive Oil is among the best on the market. The highly hyped oil is sourced from ...

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

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

The athleisure company alleged in a lawsuit that Costco is selling discounted "dupes" of some of Lululemon's most popular ...

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

Lululemon is accusing Costco of infringing on its intellectual property by selling knock-offs of some of its most popular ...

Lululemon sues Costco for allegedly selling knock-off athleisure under its Kirkland brand. Learn about the ongoing legal ...

In a lawsuit filed Friday, Lululemon claimed Costco was violating its patents by selling “knockoff” versions of its pants, ...

Lululemon has filed a lawsuit against Costco that accuses the wholesale club operator of selling lower-priced duplicates of ...

Costco launched a private label named Kirkland Signature that put a unique spin on the concept of shopping generic. The ...

Clearly marked on the top left corner of these packages, you'll see the logo of a brand you've probably bought before — Keurig. But while you can find K-cups from a bunch of other companies ...

Costco’s $86 billion Kirkland Signature brand went against industry standards when it was launched in 1995. WSJ breaks down why the private label is now the retail behemoth’s secret weapon.