ELOMI SWIM. Isis Underwire Bandeau Swim Bra is cut from support heavyweight swimwear fabric with XTRA LIFE LYCRA fibre, laid over a thin but supportive foam, giving the appearance of a swim bikini bra but the support of an Elomi lingerie bra. The bottom cup conceals a soft bone for extra support. The wide back clasp is strong and secure. Detachable strong inner elastic wide straps give support with extra length to allow the straps to be worn crossed at the back or halterneck.