These are incredible. I've ordered gym shorts like these off of Amazon before and thought they were pretty good... these blew all the others out of the water. Every color is squat-proof, even the light pastel ones. I wore neon underwear with them to test them and they are 100% squat proof. They have tummy control that works amazingly well, you'll feel all tucked in in all the right places. The butt-scrunch is a little tight so you gotta pull 'em up pretty high to make it sit right, but that is NO issue because these have no front seam and haven't given me camel toe at all!!! Usually I wear a pantyliner with this kind of short even if they're seamless to prevent camel toe, but for these I don't even need a liner. I'm seriously in awe at how cheap these are and how incredible they are. My one quip is the sizing is confusing. S-M and then L-XL? I have pretty true medium thighs so I ordered the S-M (5'6, 135 lbs) and they're snug but not tight. They don't press into your inner thigh, they just sit perfectly on top without making an indent, so I love that. That being said, I'd recommend you order 2 packs in the 2 different sizes just to see. I feel like since they're so stretchy a true medium would probably fit fine with extra space to grow the booty gains in the L-XL option.