Calvin Klein Naked Glamour Strapless Push Up Bra (F3493). If you want a bra that offers versatility and enhancement, this strapless push up bra is perfect. Underwire cups feature medium graduated padding along the bottom for a sexy effect. Microfiber cup overlays give you a smooth finish while side boning provides added support. Optional straps are included for a versatile look. Contour, underwire cup has medium graduated, crescent shaped padding along the bottom and sides for a youthful and sexy appearance. Padded cups are made of smooth microfiber fabric and are independently shaped. Arched center panel with silvertone Calvin Klein charm detail. Sides and back have covered elastic along the top and bottom of sides and back for elasticity and a custom fit. Silicone gripper elastic lines the inside of bra to help keep it in place. Side seam boning gives additional support. Removable covered elastic straps with silvertone hardware feature embossed Calvin Klein logo. Back coated metal hook-and-eye closure, see Fitter's Comments below for hook count.