More than 2,000 Starbucks baristas at 120 U.S. stores have gone on strike since Sunday to protest a new company dress code.

Hundreds of Starbucks workers have walked off the job at over 100 U.S. stores this week in a strike that's protesting a new dress code that went into effect this week. The big picture: Axios' Kelly Tyko notes the Seattle-based cofee giant is trying to revitalize the brand amid sluggish sales by returning to its roots with a new design Starbucks says provides "simplified color options that allow our iconic green apron to shine,

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.