chain guard

Hi there! Was wondering anyone ever tried to put on chain guard or cover on Domane+? The reason is my pants get stained pretty often by the chain (those dark oil hard to get rid of), plus there was once my chain was off the crank, not a pleasant experience mingle with those chain by my hands...

I have a Trek XM700 which has a full chain guard, which I love. I want to remove my chain which requires the removal of the chain guard. I've searched online and on this forum to no avail. Does anyone on this forum have any experience with full chain guards on bikes with the Bosch performance...