Robust material construction but flawed in three areas.
The internal frame of this bag has the ability to pack down smaller at the wheel end for when you have less gear inside, however when you do this it results in a sharp edge along the hinge which, in my case, has poked through the lining of the bag. The lining should be reinforced on the inside to stop this.
Also with the frame, when you increase the volume of the bag the internal metal side struts are difficult to slot into the main tubular frame and often come out when the bag is in use which causes the bag to loose shape and provide less protection of the contents.
Finally, after only 2 uses the shiny grey lettering began to peel off and it now looks decidedly tatty.
Not worth £200.
p.s. bag bought in 2010