Acuvue Vita for Astigmatism are made from a non-coated silicone hydrogel material which offers exceptional comfort and breathability by maintaining hydration within the lens throughout the month. Increased oxygen across the lens is due in part to the innovative Hydramax™ Technology built into the lens which provides reliable all-day wear. The Blink Stabilized® design works with the natural shape and blinking movement of your eye to maintain the correct position for the lens, ensuring optimal vision and clarity. Additionally these lenses offer the highest level of protection against UVA/UVB rays in a monthly contact lens to keep your eyes healthy indoors or out.