Last week, the Supreme Court announced a decision that large companies do not have to enforce the vaccination-or-testing requirement proposed by the Biden Administration. However, the decision is ultimately left up to the employer whether or not to continue the vaccine requirement. And that has put Carhartt in a tight spot with its customer base. Carhartt has come under fire from its more conservative consumers after it decided to keep the vaccine mandate in place for its roughly 3,000 U.S.-based employees.

This week, #BoycottCarhartt started trending on Twitter after the announcement from Carhartt’s CEO Mark Valade. In an email sent it to workers a day after the Supreme Court’s decision, Valade emphasizes workplace safety.

“We put workplace safety at the very top of our priority list and the Supreme Court’s recent ruling doesn’t impact that core value. We, and the medical community, continue to believe vaccines are necessary to ensure a safe working environment for every associate and even perhaps their households,” the message said.