Detailed Measurements by ModelGenerally, all our models are designed to fit a chest circumference between 85 and 110 cm (33.5 – 43.3 inches). However, depending on the cup size and the nipple-to-nipple distance, specific models may look more natural on a broader chest, while others are better suited for a narrower frame. Measure your chest circumference around the nipples (in centimeters or inches)Size limits are approximate, and a tolerance of +/- 2 cm is acceptable. This is because the straps are made of elastic bands, and the high-quality silicone material itself is highly stretchable.