(NEXSTAR) – Lululemon is almost literally looking to sue the pants off Costco.

In a lawsuit filed Friday, the Canada-based athleisurewear company claimed Costco was violating its patents by selling “knockoff” versions of its pants, as well as its hoodies and jackets.

“Costco has unlawfully traded upon Plaintiffs’ reputation, goodwill and sweat equity by selling unauthorized and unlicensed apparel employing knockoff, infringing versions of Plaintiffs’ well-known trade dress and design patents (the “Infringing Products”) and to recover fully for the monetary damages and significant harm to lululemon’s brands and reputation caused by Defendant,” reads a portion of the lawsuit.

Lululemon’s lawsuit specifically........

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