Easy to use chart will help determine which swimsuit will fit better even when your size is not in stock. Swimwear unlike your lingerie has a four way stretch and you can often find by either going up a back size and down a cup size or down a back size and up a cup size you can achieve a great fit in a size that you wouldn’t have thought of trying. If that sounds a little complicated just find your regular size on the chart and go up or down diagonally one size either way.