Yes! All sizing is US standard sizing. An item description will list specifically if the particular garment falls outside of normal size ranges.
For Leggings (high waist):
Women's Classic Size: 0/2-12 (Previously Standard)
Women's Curvy Size: 12 - 20 (Previously Extended)
Women's Extra Curvy Size 1X-2X (22/24)
Women's Extra Curvy Size: 3x/4x/5x (26/28) (Previously Extended Plus)
Kids: S/M- 4-6
Kids: L/XL- 6-10
Some Kid's Leggings sizes come in S, M or L instead of S/M and L/XL. In this case, please refer to the following size chart:
Kids S: 4-6
Kids M: 6-8
Kids L: 10-12
For Leggings (yoga waist):
Women's Classic Size: 0-10 (Previously Standard)
Women's Curvy Size: 10 - 18 (Previously Extended)
Women's Tops/ Dresses:
Women S 2-4
Women M 6-8
Women L 10-12
Women XL 14-16
Women XL/1X: 14-18
Women 1XL 16-18
Women 2Xl 20-22
Women 3XL 24-26
NOTE: As not all body types are the same, these are estimations.