The PersonalFit Flex™ Breast Shields by Medela are designed for maximum comfort and flexibility during breastfeeding. Featuring a unique soft and flexible rim, they adapt to your breast shape, providing an optimal fit. The breast shields come in two sizes and are made from BPA-free materials, ensuring safety for you and your baby. Their innovative design helps optimize milk flow, making pumping more efficient. The clear design allows you to easily monitor milk levels while using the shields, enhancing the overall breastfeeding experience.