Total30 contacts have a water content of 55%. They are made from Silicone Hydrogel. Oftentimes (and counterintuitively) the higher the water content, the more drying the lens can be for wearers with dry eye conditions. This is not always the case though, as lens material type, lens size, and even the contact lens solution you use can be contributing factors. As this can be a complicated issue, its best to consult with your ECP to determine what's at the root of your dry eye condition and how best to address it in terms of contact lens and other lifestyle choices.