Explanation on measurement

Tops / Dresses

The sizes stated can be delineate as (approximately):

S Chest (30.0 ~ 32.0 inch), Hip (33.0 ~ 34.5 inch)
M Chest (32.1 ~ 33.7 inch), Hip (34.6 ~ 36.0 inch)
L Chest (33.8 ~ 35.0 inch), Hip (36.1 ~ 37.8 inch)

Bottoms

The sizes stated can be delineate as (approximately):

S Waist (25.0 ~ 26.6 inch), Hip (33.0 ~ 34.5 inch)
M Waist (26.7 ~ 27.6 inch), Hip (34.6 ~ 36.0 inch)
L Waist (27.7 ~ 28.0 inch), Hip (36.1 ~ 37.8 inch)

Products with Free Size means it is approximately between size S and M.