Evenflo AdvancedFit Flange System - Breast Pump Accessories Comfort and Compatibility The Evenflo AdvancedFit Flange System is designed to enhance your breastfeeding experience by providing a soft and comfortable fit. Made from 100% super-soft silicone, the flanges are free of BPA, polycarbonates, PVC, and phthalates. They use FDA-approved food-grade material, ensuring safety and peace of mind. Enhanced Milk Expression A proper flange fit not only ensures comfort but also aids in more efficient milk expression, making your breastfeeding journey smoother and more productive. Compatibility with Evenflo Pumps The AdvancedFit Flange System is compatible with all Evenflo Feeding Advanced Breast Pumps. This includes the hospital-strength Advanced Double Electric Breast Pump, Advanced Single Electric Breast Pump, and Advanced Manual Breast Pump, offering flexibility and convenience across different pumping needs.