Christmas is usually associated with a man in a red suit, but Barry Allen already has a red suit...and it seems his holidays will be coming up yellow.

The CW has released a synopsis for the upcoming, ninth episode of The Flash, set to air on December 9. The episode will be the last outing prior to the midseason finale on December 16, and the first one following the series' crossover with Arrow.

It's probably safe to assume that "The Man in the Yellow Suit" is the Reverse-Flash, whose likeness was spotted on an on-set poster the day the series premiere aired. Set spies have spotted the character as well, around the time that the series would be filming either Episode 9 or 10.

You can check out the official synopsis below...

BARRY CELEBRATES CHRISTMAS WITH THE WESTS — Barry (Grant Gustin) enjoys the annual tradition of tree trimming and gift exchange with Joe (Jesse L. Martin) and Iris (Candice Patton). He gives Iris a touching gift, but the moment is interrupted by Eddie’s (Rick Cosnett) arrival. Ralph Hemecker directed the episode written by Todd Helbing & Aaron Helbing (#109).