MilkBank's triple-vented cap delivers unrestricted milk flow to prevent colic, spit-up, burping, gas, and fluid in the ear. Making feeding a happier time for all. Plus, our patented leak-proof filter system means your bottle will never leak. Other vented bottles contain numerous parts that require a special cleaning brush. MilkBank is 100% dishwasher safe. Clean up is quick and easy.For more information, click here.