The size of this product is Asian size, not US/EU size. If you do not know how tochoose your size, please leave us a meage about your waist (cm) and weight (kg).Note: The Padded Butt-lifting Panty has 4 different types,picture of the link is mainly showing type A "168 Breathable".Type A: "168 Breathable"Type B: "138 Gloy"Type C: "139 Mesh"Type D: "188 Floral"Type D: "188 Alphabet"About chromatic aberration.There might be sightly difference in color because of the computer monitor settings. Online shopping cannot be completely avoid chromatic aberration, please take carefully who are serious to colors.