Justin Bieber Strips Down to His Calvin Klein Briefs in Snowy Getaway

Justin Bieber is heating up his winter vacay by stripping down to just his Calvin Klein briefs … and giving fans a close-up look at what he’s packing.

The pop star posted on his Instagram Stories Thursday evening, sharing a series of pics from his winter getaway … including a couple where he sported nothing — and we mean nothing — but the designer underwear.

Check it out … JB’s lounging in a wooden recliner, catching some rays next to a brisk brook and quite a bit of snow. Justin appeared to be a bit damp, hinting the “Yummy” singer may’ve participated in a “Polar Bear Plunge” of sorts … a dip in a freezing-cold body of water in the middle of winter.

Regardless of the reason, Justin transmitted a very important message with these pics… nothing comes between him and his Calvins. (The hitmaker has been a longtime ambassador for Calvin Klein, for those wondering.)

While Justin didn’t reveal where he was off vacationing, it’s clear he enjoyed the cold weather at a ski resort … the singer also uploaded a photo of himself — this time bundled up — sitting on a snow mound, smoking in front of some skis.