Special fabric to exercise, adapts well to all body types, the color does not deteriorate with the washes, has the properties to dry quickly in which the sweat is not noticeable and it covers cellulite. S/M for sizes 6-8-10 en jean and size L/XL for 12-14. If you are size 10 but have wide hips and thicker thighs, we recommend size L/XL for more comfort.