Chances are that if you've read any of the other reviews I have for subreddits, I'm quite a fan of the style of content distribution that you find on them. This particular review is for /r/GirlsInYogaPants and yes - you guessed it - it's all about those great asses attached to skinny chicks that have bodies and booties you can't live without.
Girls In Yoga Pants is filled to the brim with amateur material of sexy babes that have fantastic asses - all of which are clad in tight, form-fitting clothing. Note that Girls In Yoga Pants isn't incredibly anal about its material, and some leggings and shorts make their way into the content stream so long as they're basically giving the same feel and vibe as those classic yoga outfits.
The subreddit has just under 150,000 readers and an archive of thousands of pictures. It's updated with fresh, user-submitted material on an hourly basis and as far as I'm concerned, the best place to find hot girls wearing yoga pants.