Wow! Those are highly technically advanced bags. Accoring to the Tour and Ride web page they weigh 8.38 pounds but have no height, length or width! That's amazing! I'm thinking they must come with some manner of Klingon cloaking device to give the appearance of absolutely no volume or mass.
"Plan? Plan! There ain't no plan."
Pig Killer, Mad Max Beyond Thunderdome
The Givi Easybag line of saddle bags fit the Versys better than the Givi Silver line you have linked to. The Givi Easybag line has some support built in so it does not droop. No need to buy brackets with soft luggage.