I am serious about the better eye patch.
The things needed are:
-
dense cotton fabric for comfort and moisture /sweat absorption.
Synthetic fibers tend not to absorb sweat well. -
Loops for attaching elastic strap. With loops the elastic strap can be
easily replaced. These always fail in time. -
A washable replacement for the cardboard, which is flexible and returns
to shape. I HATE cardboard. It means I can never wash my eye patch no
mater how much it begins to stink from sweat. In hot weather, I can only
get a few days out of an eye patch. In the cold weather I can get up to 3
months.
My eye patches are one of the things that makes me enjoy the cold weather
and prevents be from enjoying the summer.
This does not effect many people I know, but sweaty eye patches are very
bothersome. Meaning I can’t wear it as long as I should resulting in
significant eye strain and decreased vision.
I WILL be there. 
Please suggest or bring cardboard alternatives to try.