J Cup One Piece Swimsuits

J cup one-piece swimsuits from the specialist brands that range this size properly — deep underwired cups, firm side support and full coverage. Sizes 6 to 20.

J Cup Swimwear | J Cup Bras | Onepiece Swimwear | J Cup Bikini Tops | Swimsuits

At J cup only genuine bra-sized construction works in a swimsuit. The list of brands that deliver it is short, and we would rather range the few that do than pad the page with styles that will not hold.

What to look for at J cup

Long channelled underwires that clear the side tissue, firm cup fabric that does not relax when wet, and wide adjustable straps that carry the weight without digging. A swimsuit that fastens at the back will almost always outperform one that pulls on.