These are very flattering thick leggings that would keep you warm in the fall and winter, but when i pulled them up i got a big hole in the seam at the waistband at my first trip to the bathroom! obviously you might expect a rip if they were too tight, but these fit perfectly (even on the looser side) and ripped effortlessly. pretty embarrassing given the price! bringing these back! 

for reference ( if you decide to try your luck), i am 5'7", 128# and my normal size s was perfect.