Wow, I did not realize that the Ivy Park leggings line was so highly rated — people seem to really love them. This style particularly has “built-in opaque briefs” and “hidden interior shorts,” which is pretty cool. They’re available in sizes XXS-XL in black and dark gray at Nordstrom for $65. IVY PARK ‘Y’ High Rise Leggings
Also at Nordstrom, Zella leggings in plus sizes have a lot of positive reviews.