These are very comfortable and the fabric is thick. The waist band rolls down every once in a while if I am being very active but it rolls down gradually and I don't ever feel like they roll down so much that I might be exposed. The crotch area is sewn together differently than most leggings I've seen, and the best way I can describe it is that to me it looks like the way a barbie doll is put together in that area. To me it looked odd but not enough to bother me and I honestly don't think anybody notices it. I've asked my mom and my boyfriend and they both say it isn't something they noticed until I mentioned it, and even then it doesn't look bad. I usually wear a medium and sometimes I have to get a large but I got a medium in these and they fit perfectly, they don't feel tight at all. These are actually my favorite leggings and I will probably buy more in different colors.I accidentally ordered a pair of these leggings and when they arrived I was SHOCKED at how bright the colors actually were. I am 5'0-5'1 and around 115 lbs so ordering pants online isn't something I can do often because 9/10 they don't fit me. These fit and are super comfortable. probably one of the best accidentally purchases I've made. So much so I ordered two other pairs and am super excited about it.I buy a similar style of leggings from a more well known store. These leggings were $15 cheaper AND the seems are higher quality. This particular waist is flattering and comfortable at the same time. These leggings were a little longer than what I'm used to. I'm 5'6" and they fit me fine. I could grow a few inches if I wanted and they would still fit fine. Definitely suggest for taller girls!It’s too bad this product isn’t cut correctly. I ordered a L and it fits like a small. So really, it doesn’t fit at all. I’m not sure who is measuring the material, but it’s not correct. It’s really a shame because this color is very pretty and the design is different.I did not exchange for a new size because the seller is non-existent and the seller’s customer service is terrible. The seller will try to charge for an exchange, or refund. If it within the 30 day policy there is no charge. I tried to contact the seller, and got no response. Amazon contacted the seller and again, no response. It went on long enough that Amazon became responsible and refunded my money. I would give this seller zero stars and Amazon as a company five stars. It’s disappointing that the seller didn’t respond. I would have gladly exchanged for an XL, but oh well. That tells me this seller is not legit. I donated my pants to GoodWill.I'm 5'9, 150 lbs and these fit me. They also fit my 5'7 friend who is about 140 lbs. (Got them as a gift for her) It is a nice length on both of us... I ordered a medium, I have the grey and coral (so cute!- don't mind my snap caption after a workout in my new leggings) and she has the blue from this order. I would say if you are quite short they might be a little long. Both colors are adorable and a great find and quality for the price. If you have a little more booty I would recommend sizing up. I am a 6/8 US size and I could have worn the medium or large comfortably, but if your closer to an 8-12 US I would recommend the large.Nice for yoga, but they are too snug in the legs....and unfortunately make it hard to get on. I ordered above my size and they were still a bit on the small & uncomfortable side. I git into them but didnt feel so comfortabke to do yoga in. Gave them to my 18yr old daughter, and she says they are okay....but a bit loose on her hips and tight on her legs (she's 113lbs). I orderd an XLThese and my blue pair, are my favorite leggings. Beware, if you don’t want to light up like a Christmas tree in the middle of the frozen tundra at the darkest hour, don’t wear these. If you want to be mistaken for the northern lights and blind everyone in the gym while you deadlift or on the road as you fly by on you bicycle- these are for you. The compression is fantastic, and the compliments are far better. I have to pick the right day and time to wear these, and I also need new shoes to match them. As I get the extra cash, I buy more of these leggings. I will own them all.Good coverage, not at all see-through, definitely compression leggings/tights. If you are used to wearing high-waisted yoga/exercise leggings, these will feel quite low-waisted, although the wide waistband is very comfortable and ensured these stayed up for a 5k without needing to be pulled up once. Sizing/Fit as expected, ordered a M for 5' 6" 130 lb athletic fit body, and they fit just right! Bright neon green definitely eye-catching & fun.