hi Daniel
Have a look at my posting : FS RANGE OF COUNTRYWEAR & HIKING KIT -NEW
although i have sold the 35 litre approach rugsac the pictures will give you an idea of what i'm talking about - I also have the 45 litre version that I have decided to sell now as well. It's a superior option to the golites with the following advantages:
original lightweight back system has light framesheet and plastics stays that allow it to carry heavier weights more comfortably than the golites (which of course were never designed for weight) as well as the airspace system is exceptionally breathable with just the contact points being the 3d mesh straps and the waist belt. (main difference between the 35 and 45 (which is more like 50+ litres ) approach is that the 45 has a split moulded waist belt and bigger body.) When the back system is tensioned (like a bow) -not only does it stabilise the load creating massive airflow but gives fine tuning of back fitting.
also lightweight with ripstop and cordura re-enforcements on wear areas, water pockets on sides allow nalgene/sigg handsfree kits fitted to bottles, zipped internal and 2 external pockets (os size and bigger ) also olive as 35L. please pm if you have anu questions -thanks