These silicone shells serve a dual purpose: collecting breast milk leaks and providing comfort. As a breast milk collector, they passively gather milk that would otherwise be lost during breastfeeding or pumping, saving precious ounces. As breast pads, they offer gentle cushioning and protection against friction and irritation. They are typically soft, flexible, and reusable, offering a more eco-friendly and economical alternative to disposable breast pads. They may have a built-in spout for easy pouring of collected milk.