Lululemon Gets Aggressive Over Lookalikes in Costco Lawsuit

Lululemon Athletica Inc. is accusing Costco Wholesale Corp. of copying its apparel designs in a lawsuit—and the upscale sportswear company shared images with the court to back up its case. Here’s a look at the specific products that Lululemon is calling out.

The items in question include hoodies, jackets and pants that have similar colors and names to the Lululemon products.

Lululemon is arguing that the products sold at Costco entirely replicate the design of their apparel, highlighting silhouettes, seamlines and accents trademarked by Lululemon in the visual comparisons provided to the court.

“As an innovation-led company that invests significantly in the research, development, and design of our products, we take the responsibility of protecting and enforcing our intellectual property rights very seriously and pursue the appropriate legal action when necessary,” a Lululemon spokesperson said in a statement.

Costco declined to comment. It has yet to file a response to Lululemon’s lawsuit.

Lululemon pioneered yogawear, but it’s facing more intense competition as lower-priced items become more widely available. That has contributed to slowing growth and a sagging stock price. The lawsuit shows the company is taking a more aggressive stance on the issue.

Social media has fueled the popularity of so-called “dupes,” with TikTok hashtags providing a quick way for content creators to generate free marketing for lookalike products. Brand loyalty has also declined as years of higher inflation has eroded some shoppers’ purchasing power and cheaper alternatives hit the market.

Top photo: A Lululemon store in New York on Thursday, Aug. 22, 2024. Photographer: Yuki Iwamura/Bloomberg.

Copyright 2025 Bloomberg.