I tackled the last stages after work which turned out to be a bad move as I grappled with fitting the bits together inside out. Aka. I made a few mistakes along the way, including some I will have to live with - but it turned out pretty good if I do say so myself. It fits comfortably, even with weight in and has that tardis quality. It doesn't look so big on but seems to take a lot of stuff. Case in point my water bottles. I designed it to take two Platypus soft bottles thinking that would fill it, but one bottle disappears into the bottom with lots of room for more.
The bottles are actually longer than the bag, but the sides bow out to accommodate :).
The front flap is longer than it maybe needs to be, but the pocket is just right to take a map... Swedish topo maps and UK OS maps drop right in with just a tad showing. I think the French maps I need for the Pyrenees are just a bit smaller.
As bumbag go it's not small - and seems to sit more comfortably at the front than as a lumbar pack. It does sit nicely as a satchel too, though the compromise there is extra length on the straps when it's around the waist.
Dimensions... 300 x 155 x 75.
Weight... Circa 100g.

