eather-trimmed crepe mini dressDescription Size Chart How to Measure Clothing Size? The key to determine correct clothing size. is taking correct measurements. It is important to know exactly how to measure your body. and to do it carefully. Let us show you Bust: Use a flexible measuring tape and measure circumference around body over the fullest part of the bust. while wearing a correct fitting bra. Make sure the measuring tape is parallel with the floor all the way around. Waist: