Starbucks baristas are walking off the job all over the U.S. following a new dress code policy. But Arizona employees say it's about more than that.

Starbucks union workers aren’t as upset about the dress code; they’re upset about the lack of a contract. On Monday, Starbucks rolled out a new dress code as part of its larger corporate overhaul. But union workers say the change is both restrictive and unproductive—and now,

Starbucks and the union had temporarily agreed to collective bargaining over dress code changes as part of ongoing negotiations for a new contract. In December, a bargaining session with the company failed to produce better wage gains.