Air Optix for Astigmatism Contacts feature "SmartShield Technology" that helps to create a shield of moisture around the lens that not only keeps the lenses more comfortable for longer periods of time, but also protects the lenses from irritating deposits so your contact lenses maintain comfort all month long. 

These lenses also feature a unique "Precision Balance 8 | 4 Lens Design" that helps the contacts to stay properly positioned all day long, which minimizes movement and maximizes clear vision.