Lululemon Sues Costco Over Alleged Copycat Yoga Pants

June 30, 2025

Lululemon filed a lawsuit against Costco, charging the warehouse club is selling “confusingly similar” replicas of its jackets, sweatshirts and pants.

In a lawsuit filed Friday in the U.S. District Court for the Central District of California, Lululemonclaims that certain Costco products imitate its own designs so closely that it constitutes “trade dress” infringement, which occurs when a product mimics another so closely that it confuses consumers.

The lawsuit targets several Lululemon staples, including the Scuba hoodies, Define jackets, and ABC pants, some of which are allegedly sold under Costco’s in-house Kirkland Signature label.

Other copycat items, according to Lululemon, are manufactured by third-party brands such as Danskin, Jockey, and Spyder but still sold in Costco stores. SGB