Topeak

MTX TrunkBag EX Black

I use it with a Beam Rack EX and it works well. Easy on, easy off. High quality. It is a good medium size and works for my commute. My size 13 shoes don't quite fit...people with normal sized feet may be able to close the bag with shoes inside. Mine stick out a bit, but I can close the bag enough to get by.

Bought so that I could go riding with my dog. Needed to carry water, leash, snacks, etc. I also keep my spare tube and tool kit inside. It mounts easily to the MTX rack system. So far it is quite stable. Zippers seem sturdy. I even can hold my three piece walking stick in the bungees on the top. It may be a little small for some needs but it is perfect for what I had in mind. Plus... It really looks good mounted on the bike and with the quick release MTX rack system it is easily removed when not needed.