I just installed the Magadan Adventure Spec onto my Sw-Motec pannier racks with Rok straps.
The panniers got velcro straps that connect the two, I put those straps under pillion seat for better looks and security.
The panniers got water proof inner bags which is handy to just remove and carry with you and leave the "muddy" panniers attached to the bike.
These panniers can be loaded with lots of stuff and expand when needed.
Got 4 outer pockets and 2 inner pockets. The outer ones are perfect for big bottles or beer cans, 2 of those pockets are quite large and if you have a right size fuel/oil container (1/2 gallon) it would fit there (thinking about a Touratech one). Tried with a 2 liter wine cask and it just fit there!
Will have these bags on the bike most of the time from now and only attach my TraX panniers when traveling further and not "off road", did actually attach the Magadan panniers on top of my TraX panniers and with my large Givi E52, Wolfman tank bag, Wolfman tank panniers I can get up to 200 liter luggage capacity.
I believe the Magadan panniers can be loaded with up to 35 liter each, they state 25 liter but they seem to be way bigger than that.
Good panniers, I think they are great panniers!