They clip easily to the pannier. Used them off-road for miles of washboard and they didn’t budge. The system works. Better than a duffel because it is a suitcase. Everything stays fresh, wrinkle free and dust free. A duffel tends to smash everything together. You also have pockets for papers and other things you wouldn’t want to keep in a duffel. Easy access to contents as well. The bungee cords on top are perfect to dry things out while riding or to hold things like gloves. These are well thought out and a cheaper alternative to a top box.

Top quality!

Perfekt

I’ve had one of these strapped to my rear rack for over 2 years Brilliant bit oNf kit 100% water and dust proof Carries a huge amount of kit and straps securely to the rear rack No bouncing around no matter what you put in it
Highly recommended if not for the purpose it was designed