(WARNING: This post is contains potentially NSFW photographs of naked yogis. We blurred the butt cracks above, but from here on out, the butt cracks will be uncensored and free.)

Anything most people do clothed, someone has been doing naked since forever. So naked yoga isn't exactly anything newit's been around since at least the 60s and is called "nagna yoga" in Sanskritbut now there's a studio in New York that specializes in it: Bold & Naked in Chelsea.

But it's "not about naked for naked's sake."

"There are a lot of things that separate us in a normal yoga class, like what brand of yoga clothing you're wearing or how you look when you're wearing it," one attendee told Daily Mail. "But when we're naked, it's like we're all the same." (Which ignores that fact that buying yoga pants is one of the best parts of doing yoga. There are so many patterns! And they're all so cute!)

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Co-owners Joschi Schwarz and Monika Werner say the practice is about "being comfortable in your own skin," "knowing...and loving yourself at your core" and "accepting your flaws." They claim, "If you are okay with being naked you'll feel more comfortable in general and can take yourself anywhere in the world."

And, in their FAQ, they explain that everyone who attends the naked yoga class must be naked. ("In order to keep everyone on the same level and equal. That's what naked yoga is all about.")

What naked yoga is not about is boners. "IF YOU ARE LOOKING FOR AN ORGASM, YOU ARE IN THE WRONG PLACE," Schwarz and Werner write on their site, including this apparently frequently asked question:

"Bold & Naked sounds great, but I don't want to practice yoga. Do you mind if I just watch?"

(Short answer: Yes. They mind.)

Read more here:
There's a Yoga Studio in New York That Has Naked Yoga Classes (But It's Not a Sex Thing)