The size of the frames on the specs will probably dictate what goggles will comfortably fit. I cant wear mine within any mask comfortably. However the Dye I3's offered me more room, but still not enough. Just depends on your profile, as I have a meaty head.I am a beginner and am looking for a good mask that is thermal and is easy for people with glasses to wear? JT, Scott , or what ever who is the best?