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Lululemon Sues Costco Over Alleged Dupes of Its Athleisure Line

Lululemon is asking a federal judge for an injunction to stop sales of the alleged dupes, seeking damages to recoup lost sales.

A Lululemon store in New York in August 2024.
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Overview

  • The lawsuit filed June 27 in the Central District of California alleges Costco’s Kirkland brand and vendors including Danskin, Jockey and Spyder infringed Lululemon’s trade dress and design patents.
  • Lululemon identifies six specific knockoff items, from $8–$22 hoodies and jackets to $10 performance pants, that closely mirror its $98–$128 Scuba, Define and ABC products.
  • The complaint argues the look-alikes have led some customers to mistake them for authentic Lululemon apparel, eroding the brand’s reputation and premium pricing model.
  • Lululemon is seeking a permanent injunction to halt manufacturing, importing, marketing and sales of the accused dupes, along with removal of related advertising materials and unspecified monetary damages.
  • Costco has not yet filed a formal response to the suit, which also requests a jury trial to resolve claims of unfair competition, patent infringement and trademark violations.