The large main compartment holds about 9.5 liters. There is also a front pocket, two flat side pockets, and two small rear pockets which I use for a cell phone and a small camera. The top has a map pocket. One of the neat features is the stiffener which goes in a long sleeve so no plastic is exposed.
Outside dimensions are: Width = 28cm, depth = 21cm, and height = 25cm. This bag is considerably larger than the VO Campagne bag. (And a bit larger than the Ostritch bag that we used to stock.)
The Grand Cru handlebar bag is designed to be used with, or without, a decaleur. There are two webbing patches running front to back under the bag. these are spaced at the same width as the rails on most small front racks. You can pass a strap through them to attach the bag to the rack if you’re not using a decaleur. An old toe clip strap works well for this. We chose this method rather than Velcro because the latter seems to wear out after a few years of heavy use.
The bag comes with a shoulder strap, very useful when walking around. No handlebar straps are included, since hardly anyone uses them anymore, but there are slots for them in case you’re a true traditionalist.