I make this style with one layer of heavy-weight swimwear fabric and one layer of lining in the front for coverage. The wasitband is sewn in with elastic, and a concealed drawstring for added security.
I am wearing a Medium in the photos, my waist measures 34 inches.
XS 24-26, S 28-30, M 32-34, L 36-38, XL 40-42, 2XL 44-46, 3XL 48-52, 4XL 54-58
Because I make every swimsuit to order, please understand there is a 2-3 week processing period.