Usually a medium in leggings!
357128
Medium was perfect! These have lasted me a while too! I love wearing these to the gym!
2656039
These fit perfect , I were medium and these have a little stretch to them ! Will be buying more like these !
634616
Finding the right fit for leggings isn't always easy. So figured I'd give my figure so folks have some idea. I'm 5'7 inches and 135lbs. I am curvy, so I have hips/thighs, but also have rather dainty ankles and slimmer calves. I ordered a medium in these leggings and they fit well. They are a bit snug (If I were ordering again, I'd consider going up a size though I don't know if they'd be too big - I'm guessing I'm borderline on the 2 sizes). I'm sticking with the medium.

It's worth noting, there's very little stretch/give in these leggings so better to lean toward something a little bigger than too small.

Giving a 4 star rating as I wish they'd put just a hair more elasticity in these puppies but overall relatively happy with them.
843953
Super fun leggings!  Runs more along the lines of a heavy tight and does have a low rise in the back.  Great under a mini skirt or big sweater.
4931535
Super cute leggings for barre or any type of fitness. I normally wear a medium in leggings, but I had to exchange these for a large! Order a size up, you will not be dissapointed.
45204
Took a Medium as I usually do for Under Armour, whether top  or bottom. The waist was too loose and had to be adjusted. Perfect fit for the legs!!
3621731
These are absolutely not cotton. Same polyester/spandex blend as any graphic print leggings, Waist is a bit low considering how tight it is. I'm a pants size 5 and these ride down because the waist is to low for the tightness it is, not enough booty room. That being said, the colors are true to the photo. They look flash. You could probably order a size slightly larger than you'd expect and be good. Just know these are definitely hip huggers.
2970037
Bougght the medium for my 10 year old daughter. Fits a little large, but she loves it that way, it looks great with skinny jeans or leggings!
4740346
The person wears a medium size, but we order a large size for this item and was still a little small.
3663426
The leggings fit me like an XS glove, so sizing is about a size or two down. I gave them to my bff for her birthday however, and she LOVES them! Since the title has (winter) in it I'd assumed that these were fleece lined, but they're just regular leggings. Nice, soft fabric and definitely preferred for the summer months. Still, a great product!
2727528
I ma usually size eight or medium it depends from product, I have bought medium size leggings they fit perfectly and they look very good, good quality.
4784093
Cute leggings! They are soft and fit well! I ordered a plus size as I wear a 14-16 normally. I can't wait to wear them at our next gig!
4595165
Ordered the medium/large for my wife and she could not squeeze into them.  The item is not as stretchy as most of the leggings I have ordered her.  She says that Betsey Johnson is a designer so the clothes are for thinner women. In this case she is right.
3418026
On reading other reviews, I ordered a medium. They sre too small so I  am going to send them back for a large. I really like the leggings, even though they are so thick I  will not be able to wear them in this hot southern  climate. I think i will enjoy  them this fall and winter.
3799642
The material is soft and everything but I'm usually a small in sweatpants, I ordered a medium and it fits like leggings that are one size too small.
2932499
I bought these in a tall size, because its hard to find tights that go all the way to your ankle when you are 511!  The size is just about right as far as medium fitting like a medium.  I would have been grateful for maybe one more inch on the bottom of these tights though.  They fit fine, but I think I might be the tallest these are made for.  They hit just above my ankles.  Any taller and you are still going to run into not getting quite enough length.  Also, I had been hoping for just a tad bit more compression.  These tights are comfortable, but they are a bit thinner than I expected, and a softer fit.  I like a lot of compression when I jog, and these weren't quite as snug as I would have liked.  However, overall they are good tights and a cute color (they match my sneakers!).  Due to the light color, though, and the thinner material (not super thin, but not thick) I definitely will be wearing shorts over top or a tunic length shirt!!!!
4842810
Love the leggings and color. Just wish I had ordered the large/Xlarge. They are a bit snug in the waist. I usually wear size 12 so I ordered the medium/large.