Things are starting to get a little more formal down in Bikini Bottom.
On a regular day, SpongeBob SquarePants generally rocks a nice white shirt/brown shorts combo.
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Though he also shakes things up on occasion -- we've also spotted him wearing a nice tuxedo and a band conductor outfit in the past.
But there's one piece of clothing SpongeBob SquarePants has never stepped out in: regular, long pants.
Until now.
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Nickelodeon Animation sent Mashable a video, above, of the lovable sea sponge, and he looks so...clothed.
That's right: SpongeBob just started wearing a more cold-weather-friendly version of his classic outfit.
The way the pants encase his skinny legs is almost unsettling, though we're happy he has protection during the winter.