Clariti™ 1 Day are crafted from an advanced material called silicone hydrogel, making them naturally breathable and guaranteeing that your eyes will get enough oxygen throughout the day for long-wearing comfort. Built-in WetLoc™ technology acts just like your eyes’ own moisture system, working to fortify eyes against dryness. These lenses also come equipped with UVA/UVB protection to keep eyes happy and healthy in any light.