Muni passengers who don’t have a monthly Fast Pass will get a deal on Sunday rides starting next month.

Billed as a Sunday Funday pass, all riders who purchase a regular $2 cash fare will receive an all-day transfer to use the Muni system, barring Cable Cars and the Candlestick Express buses.

The promotion starts Dec. 5 and will last until Dec. 26. The agency is touting the feature as a way for holiday shoppers to use public transit to visit all the major commercial corridors in The City.

wreisman@sfexaminer.com