New York City taxi drivers of all shapes and sizes have stripped off for a tongue-in-cheek calendar to raise money for charity.

The calendar, started in 2012, parodies the popular offering from the New York City Fire Department, which features musclebound firefighters in various states of undress.

On sale for $14.99, a portion of the proceeds from the calendar go to University Settlement – a charity in the city’s Lower East Side which provides more than 30,000 immigrants and workers a year with basic services.