This is the most awesome bag EVER!
It has a padded inner sleeve for a laptop. It has side flaps that zip open to cover your tail section so you don't scratch anything, when you zip open the sides, bungee with hooks are attached in there. I don't even hook mine to the bike, I hook it around the bottom of the fender and back to the bag itself (it has 4 D rings on the bottom)! It will hold a laptop AND a full face helmet. The back is nicely padded, and it converts into a back pack!
Takes 45 seconds to put on/take off. No hardware required. Great soft rubber handle at the "top"
Fieldsheer site with picsThis straps over the fender/back seat. No place for a passenger. This is a pretty wide bag, the laptop goes in the wide way.
HIGHLY RECOMMENDED!