I love the concept. Being overweight at 6' and 210 lbs the fat on my back has made a straight line down to my butt giving the appearance of no butt at all and making it harder to keep my jeans up. I'm hoping these will help. I wear a 36 waist in jeans and can squeeze into some 34's but not very comfortably so I ordered a large. They fit very tight and I had to pull them way up into my crotch just to get enough stretch to cover my butt crack but as soon as I set or squat down they ride back down again exposing my butt crack. Next time I will order an extra large and hopefully they will fit better. You can see how tight the large was in the pics.