ThirdLove's patent-pending TempSync wireless bra is the world's first thermoregulating bra. Fabric is infused with natural minerals to actively balance body temperature before you get hot. Perfect for staying cool through menopausal hot flashes. Better than a breathable wireless bra, the innovative 37.5® Tech fabric is infused with natural minerals to actively balance body temperature before you get hot. This is the best cooling bra for hot flashes and begins working before you ever start to sweat. Includes everything you need in an everyday essential: foam cups for shape, adjustability for a perfect fit and no annoying tags. Wear 2 ways — adjustable straps change to x-back Invisible support Imported Material & Care Nylon, spandex Machine washable