Ortlieb Office-Bag L QL3.1 (PVC Free)

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Good product. I haven't used it for daily commuting yet, so I can't give a more in-depth review.

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There are QL3 fasteners on the bike's luggage rack, and the bag snaps onto them conveniently. With an L-frame bike, you don't have to worry about your heels hitting the bag when pedaling. The bag has a lot of space, but the thin spacers don't inspire confidence. The bag is closed by rolling the lid closed. I haven't driven in the rain yet, but at least the dust has stayed well outside. A small minus is that there is no padding in the laptop slot at all. You can put a shape piece on the bottom of the bag. It is very convenient, but its snaps are difficult to put in place and do not stay closed.

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It's exactly what I needed. You can see the quality right away, and no one would even give a 60-month warranty to a bad product. A laptop (15.6") can fit, snacks can fit, and even one man's quick, small grocery shopping can easily go home from the store. QL3.1 the best of the A group, with one hand to attach and detach the bag to the rack. The fact that I have a QL3 in my stash also influenced my purchase decision. 1 attachment points as standard. Even the seller who sold the bag knew how to tell and present what I was buying. A bag worth every cent. It's not cheap, but once in a while it's worth it.

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I switched the bike to one with a QL3.1 ready and replaced the 10-year-old Office-Bag with a model with that QL3.1 mount. Ummatk-Bagit is just as good and this one will probably go at least 10 years.