The construction was first rate. Materials as well. I didn't try it on, but the first thing that caught my eye was the hip belt/shoulder straps.
Similar to the high end internal packs for backpacking/mountaineering.
The NUBILE lass from Thunder Bay must be an "Add -on" ;)
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I don't know if this was the pack, the pack I saw had a hip belt, but that's an option, so it might of been another model?
You read the material list, plus it's built for your body type, the 3/4 shoulder straps, expensive but you get what you pay for.
 Only problem is unless you go there for a look see, once you commit and they build for your frame size, it's a done deal ;D
Might have too do a road trip to Thunder Bay  ;)