We like this 100ltr Olive Green Rucksack, it is extremely versatile and packed with features.
It is made from 900 denier Cordura and has 1 large main compartment that can be divided with a built in system so you can put your wet kit in the bottom through the additional zip.
It has removeable side pouches with additional padded straps to make them into a daysack, 2 zipped lid pockets and a built in raincover that is stored in the lid.
It is internally framed and extremely comfortable and has many additional straps and loops for attaching kit and handling it.
A great Bergan very similar to the Berghaus Roc that has been so popular over the years.