These monthly disposable contact lenses are designed for those, who wear contacts for extended periods of time (but not overnight). Thanks to SmartShield technology, Air Optix Plus Hydraglyde contacts stay fresh and clean for longer. The special layer formed on top of the lens protects it from deposit buildup that can occur due to cosmetics use. HydraGlyde Moisture Matrix on the other hand keeps the lenses moist as it attracts microscopic moisture molecules and retains them for up to 16h. Air Optix Plus Hydraglyde are soaked in Alcon's OptiFree contact lens solution, which keeps them hydrated and clean.