Lululemon and Under Armour Are in a Legal Battle Over…a Bra Strap

Jul 11, 2017

Another day, another legal battle.

Ok, this one is slightly unusual. On Friday, Lululemon filed a legal complaint against rival Under Armour for design patent infringement, according to Fashion Network.

The design patent in question? A bra strap, specifically a bra strap consisting of four criss-crossed panels of fabric.

“An ordinary observer will perceive the overall appearance of the designs of the infringing products to be substantially the same as the overall appearance of the designs of the patent-in-suit," the claim reads.

This isn't the first time Lululemon, which has collected more than 50 design patents to date, has gone after a rival for patent infringement. In 2012, the Vancouver-based athleisure company brought a patent suit against Calvin Klein for violating one of its yoga pants designs (the companies reached a confidential settlement).

All products and services featured are based solely on editorial selection. FORTUNE may receive compensation for some links to products and services on this website.

Quotes delayed at least 15 minutes. Market data provided by Interactive Data. ETF and Mutual Fund data provided by Morningstar, Inc. Dow Jones Terms & Conditions: S&P Index data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. Terms & Conditions. Powered and implemented by Interactive Data Managed Solutions