Pharrell Williams and Louis Vuitton are facing a lawsuit over their launch of a high-end line of “Pocket Socks,” filed by a California company that says it’s been using that same name for more than a decade on a similar product. In a case filed last week in Los Angeles federal court, Pocket Socks Inc. says the luxury brand’s product — a literal sock-with-a-pocket that launched at Paris Fashion Week last year and sells for the whopping price of $530 — infringes its existing trademark rights to the name.

“Much attention and publicity has been generated for Louis Vuitton’s ‘Pocket Socks,’ including defendants, the press, and consumers using the name ‘Pocket Socks’ for their product which irreparably injures Pocket Socks’ longstanding brand and trademark rights,” the company’s lawyers write in the June 20 complaint. Louis Vuitton announced in February 2023 that Williams would serve as the company’s men’s creative director, and he debuted his first line for the company later that year at Men’s Fashion Week in Paris. One of the items apparently rolled out at last year’s event was the Pocket Socks — a pair of knitted socks that feature a pocket adorned with a pearl.

The socks received some notoriety in January when Jermaine Dupri was razzed on social media for wearing them during his Super Bowl halftime performance. Though currently unavailable for purchase, the socks are listed on Louis Vuitton’s UK website for £420 — roughly $530 in U.S.