This is something i feel quite strongly about as most of the masks out there piss me off lol. Just to add to the survey could you do something that was soft on your face yet still really breathable. Could you use a size lens that fits ones already out there? so you could include a mesh lens but people could also fit there bole (or whatever brand you choose) lenses in? TBH I don't like the hydration idea as i feel it may be hard to get to with teeth, and get in the way, instead, just make it flimsy enough if fabric to get the mouthpiece under?
just some thoughts. need a new mask as its a real problem for me.
Are you doing A level DT by any chance?