Alengo Strapless Butterfly Wing Ropes Self Adhesive Invisible Push-up Bra Nylon & Spandex, Underwear Specified Sponge, Polyolefin Gel High temperature sterilization;Durability adhesiveness;Breathable membrane Unique angel wing design for more cleavage Enhanced four holes design with drawstring,loose or tight as you wish Perfect gel surface, central part without gel for protecting nipples