Employees at one Starbucks location in Montclair took part in what's being called the "Red Cup Rebellion" protest.
The protest was meant to coincide with the coffee chain's "Red Cup Day."
That's when the company gives free reusable cups to customers who order a holiday drink. Workers say it’s often one of the busiest days of the year.
Similar protests took place across the country.
Striking workers at over 100 unionized stores across the country handed out union-branded cups in an effort to highlight what they say are unfair labor practices.
Workers say they're seeking better pay, more consistent schedules and higher staffing levels in busy stores. Starbucks opposes the unionization effort, saying the company functions best when it works directly with employees.
The Seattle coffee giant has more than 9,000 company-owned stores in the U.S.