Complete a survey for a complimentary membership in EyeFile, a new way to manage your eye care. Also with EyeFile you can reveive a free trial certificate & special offers! Air Optix offers 30 day and night lenses! I have had some in a different brand and I loved them. IF I wanted, I was able to leave my contacts in for an entire month! It made my night and morning routine a lot simpler! Plus, I was never good and putting contacts in my eyes!