Breast shields play a key role in pumping efficiency and overall comfort. Your Medela PersonalFit Flex shield offers new Medela Flex Technology and a unique design that adjusts easily to your breast shape - its flexible oval shape can be rotated 360 degrees and adapts to your body, so you can find the most comfortable and efficient pumping position for you. Additionally, a 105-degree angle opening combined with a soft, smooth rim is designed to reduce unnecessary pressure on the breast and lay smoothly for comfortable positioning, pumping efficiency, and a more natural feeling. Our PersonalFit Flex breast shields don't just remove more milk than traditional breast shields or effectively remove milk faster - these breast shields remove 11.8% more milk per minute and help moms pump more milk than when pumping with traditional breastshields! This optimizes your pumping sessions, making them more effective and more comfortable.