I use a Sunlite Traveler 1 saddlebag and it's held up very nicely. It holds a full change of clothes, towel, laptop, padding, lunch fixings, battery, and the little side pockets are good for repair kits and wallet/keys. It's held on with 2 bungees and 4 buckle straps, takes about 20 seconds to get it off. You can carry it around with the center handle.