With the Medela Easy Expression bustier, you are free to do other things whilst pumping. The new Medela Easy Expression bustier is compatible with Medela's electric single and double pumps like Swing, Swing maxi, Freestyle and Symphony. Mum can easily express milk while still keeping her hands free to do other things whilst pumping. With the new reinforcement along the top edge and around the pumping openings it holds the shields and bottles securely and even better in place. The Medela hands-free pumping bra is made of a nylon / spandex blend and seamfree technology making it stretchy and soft against skin. It is also easy to put on and take off thanks to its one-piece strapless design with a front zip and integrated top hook.