Simple but adequate back system, with padded shoulder strap.
Inside-back pocket is the removable aluminum frame in U shape and a thin, closed-cell insulation pad. I grab for more back padding the "US emergency blanket Combat" to - fits well and it can then also be wrinkle free transport documents.
Unpadded, broad lap with an ingenious "Bergbuckle" closure, which also allows one-hand operation with gloves. The belt is easy to tighten the outside to the backpack by the "ice ax keepers" when not in use and dangling so not around somewhere.
For more than six months in daily use as a daypack and for weekend getaways.
For small items of Bw Toiletries bag has proven to me - no more searching for small items in large zipper opening.
A great backpack that I probably will have many years of pleasure.
