Better Cover for Swaro Ocular Lens

[TWHrunner]

Is there a plastic cup like cover for the ocular lens side that I can get for my Swaro STS 20-60? The little rubber thingy that it comes with on a string is less than useless as it always rolls off in my pack.

 

[fatrascal]

Personally I use a scope cover and when I put the ocular rubber piece over the lens then I put this cover on over it. I leave the plastic swarovski cover that goes over the objective lens off and use only the after market cover. Fatrascal.