The dress code in The Hunger Games was casual, although comfortable clothing was recommended.  New images have surfaced from The Hunger Games: Catching Fire, and now the tributes have some skin-tight swimwear.  The suits probably serve the dual purpose of not only being costumes, but also to prevent the actors from getting hypothermia.  The new images not only show off Katniss (Jennifer Lawrence) and Peeta (Josh Hutcherson), but new tributes Mags (Lynn Cohen) and Finnick (Sam Claflin).Hit the jump to check out the images, and click here for a recent interview with Hutcherson.  The Hunger Games: Catching Fire opens November 22, 2013. [Update: We've removed the unofficial images.] removed imageHere's the official synopsis for The Hunger Games: Catching Fire:

THE HUNGER GAMES: CATCHING FIRE begins as Katniss Everdeen has returned home safe after winning the 74th Annual Hunger Games along with fellow tribute Peeta Mellark. Winning means that they must turn around and leave their family and close friends, embarking on a “Victor’s Tour” of the districts. Along the way Katniss senses that a rebellion is simmering, but the Capitol is still very much in control as President Snow prepares the 75th Annual Hunger Games (The Quarter Quell) – a competition that could change Panem forever.