These are OEM Suzuki Vstrom cases by KAPPA , they're very similar to GIVI monokey cases and mount to monokey racks. I painted these with truck bed liner years ago and they look tatty but are perfectly functional. They're all keyed the same and I have several keys
X, speaking to your comment on aerodynamics, I've been two up with all three of these cases fully loaded and it was stable running at an indicated 120 mph.