The popularization of mobile phones has given rise to the blooming of online shopping activities. For garment shoppers, however, it is still a great challenge to get the perfect fit online. The return rate of clothing purchased online is alarming over 30%. We therefore developed the smartphone app “1measure”. Simply by taking two mobile pictures, 1measure can calculate the body measurements accurately in an instant. The user will also be advised on figure flattering styles of clothing and suitable sizes. With the app, users can even order custom-made clothing instantly. 1measure provides excellent fashion shopping experience to online shoppers where the perfect fit is guaranteed.