Medela’s Keep Cool™ Sleep Bra features a full racerback breathing zone for fresher, cooler nights and comfortable, rejuvenating sleep. New quick dry technology helps to balance your body temperature while offering you support and comfort. Our 4-way Adaptive  Stretch™ technology will see your bra grow with you and extend from pregnancy through nursing – keeping you cool and dry throughout your journey despite your fluctuating body temperature and keeping you supported and comfortable while you sleep. The Medela Keep Cool™ Sleep Breathable Maternity & Nursing Bra will help keep you feeling cool and fresh while giving you gentle support throughout your pregnancy and nursing journey. Features: -No hooks and a breathing zone between the shoulder blades for extra comfort while you sleep -Crossover for easy feeding -Quick dry technology, unique breathing zones and temperature control to help keep you cool and dry -Soft touch Adaptive Stretch™ technology for a perfect fit that grows with your changing body -Gentle support to keep you feeling comfortable -This wireless & seamless racerback Sleep Bra is soft to the skin and provides a lightweight feel to one of the most sensitive parts of your body. -It also uses unique breathing zones, quick dry technology and temperature control to help keep you cool and dry, while the soft touch Adaptive Stretch™ technology ensures a perfect fit that grows with your changing body. -The material is certified according to Oeko-Tex® Standard 100. -Made from 95% Nylon and 5% Spandex -Machine wash hot up to 60°C -Gentle cycle only