The picture shows that the pack has lumber...
The picture shows that the pack has lumber padding, but the hip-belt does not seem to be padded. Is it padded fairly thick, or is it really thin?
It does not have padding on the belt. The Arrakis 50 does have a padded belt. The lumber support on the 40 does bend around an provide a little padding.
It is an amazing pack, and carries incredibly well.
Lumber padding? Now that's a scary image