All you need to find the perfect size tuxedo jacket and tuxedo pants are 3 measurements - Bust, Waist, and Hips. Jackets are based off your Bust and pants based off your Waist and Hips. We offer different styles and fits to accommodate to all types of women's body types. Tips on how to measure can be found on our Size Guide: https://www.littleblacktux.com/pages/size-fit-guide