For size accuracy, please refer to the actual measurement.

Bust
Stand up straight and use a measuring tape to circle around the fullest part of your chest

Waist
Use a measuring tape to circle your waist (like a belt) at your natural waistline, which is located 2cm above your belly button

Hips
Put your feet together and use a measuring tape to circle around the widest part of your hips

Upper arm
Lift your arm so that your upper arm is in a horizontal position and circle around the thickest part of your upper arm with a measuring tape