What to Wear:
When taking measurements, wear an unpadded bra that just gives you a little shape. Avoid padded bras (which will make your measurements too big) and compressive sports bras (which will make your measurements to small).
For bottoms, wear something form fitting, like leggings, or just your underoos. The important thing is to not wear anything too bulky, like jeans, it’ll throw off the measurements.