Amoena
Amoena focuses on mastectomy products, and their swimwear line is
mastectomy-only. They feature a broad variety of styles, almost all very
modest.
Hapari states that all of their swimsuits can be used as mastectomy swimsuits because they have secret pockets for silicone inserts. Please be aware that Hapari features a mixed modest and less-modest line.
Lands End features a line of mastectomy swimwear (about 17 styles) with soft bra cups and prosthesis pockets.