The new AIR OPTIX plus HydraGlyde for Astigmatism monthly lenses from Alcon correct corneal curvature and are highly oxygen permeable. They remain equally comfortable to wear throughout the month. This means you hardly feel the soft lenses. The ultra-modern silicone material (Lotrafilcon B with 33% water content) with the proven HydraGlyde Moisture Matrix is combined with the well-known SmartShield technology and ensures the best wearing properties you know. The monthly lenses can be worn comfortably and trouble-free all day long.