Levi Strauss said on Wednesday it was considering a sale of its underperforming Dockers brand and forecast fourth-quarter revenue below expectations, sending its shares down 10% in extended trading.

Shares of Levi Strauss & Co. slid after hours on Wednesday after the jeans maker tempered its full-year sales forecast, even as management said its core Levi’s brand was leading the way toward improvement and called out potential gains from its new partnership with Beyoncé.

US clothing brand Levi Strauss & Co. (LS&Co) is evaluating strategic alternatives for its underperforming Dockers brand after revealing its Q3 net revenues of $1.5bn were flat on a reported basis.