Extreme H2O Daily is the only one-day disposable lens that is available in three diameters. People's eyes are not all one standard size so their contacts shouldn't be either. When it comes to contact lens comfort, fit is the most important.Advanced moisture retention for outstanding ALL-DAY comfort.Crisp, stable visual acuity.Improved ocular health.Deposit resistance.Manufactured by X-Cel Specialty Contacts.Extreme H2O Daily contacts feature their patented GMA/hydrogel copolymer hioxifilcon A. It has advanced hydration properties that allow it to retain 99% of its moisture. All lens dimensions and oxygen permeability present in the first hour of wear will be present in the last hour of wear. Lens comfort, movement, and fit will be stable throughout the day.