Proclear 1 Day is a premium daily contact lens for maximum comfort from Cooper Vision. The comfort, compared with other lenses, can be especially felt at the end of the day. Proclear 1 day lenses maintain oxygen flow to help keep your eyes clear and white. And they stay 96% hydrated throughout the day, even after 12 hours of wear. The lens is manufactured in a new material containing PC-hydrogel – material that binds the water molecules of the lens so that it does not become as dry as other lenses. The perfect lens for those who experience symptoms of dryness when wearing lenses. The aspheric optical design in Proclear 1 day corrects lens and theoretical corneal aberrations for crisp, clear vision.