Oceanlily Women's Rouched Boyshort Bikini Swim Bottom bottom only, tankini tops are sold separately rouched sideseam for different stylish looks. Versatile for pre, post and all stages of pregnancy 35"-37"= XS, 37"-39"=size S, 39"-41"=size M, 41"-43"=size L, 43"-47"=size XL. see pictures for suggested Oceanlily tankini tops that can be mixed and matched standard Chlorine resistant, 87% Nylon Supplex, 13% Spandex