First off, this bag comes with a mount for only 24.5mm handlebars. Most bikes today come with the "oversized" 31.5mm bars, so the supplied mounting hardware will not work.

I have an aluminium bar, so I did manage to mount it using a little DIY, but the bag will bounce and sag when it contains the slightest weight. Plus the quick realease is a little fiddly.

The bag has three pockets, one large main pocket, a smaller one in the front, and the transparent map case on top.

The transparent map...

I was fascinated by this saddle bag because of the number of compartments and the transparent map case. But this is not built for the wider handle-bar cycle that come these days. If you do not use a Firefox bike, do not purchase this.