Material: Advance: silicone hydrogel material (galyfilcon a) with hydraclear wetting agent oasys: silicone hydrogel material (senofilcon a) with hydraclear plus wetting agent (less friction), slightly higher uv-a blockage oasys are more comfortable for some, but also cost more.
Answered 2/2/2017
6.2k views
The plastic: It is a different plastic in each lens. They fit similarly, but oasys "breathe" better than advance. That is to say, oasys has a better oxygen permeability.
Answered 4/9/2018
6.2k views
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