have tested the Sherpa at a 7 night snow-shoe tour. Conclusion: very good for me - Can be very good on the body size (1.74) Setting - Allows a weight distribution (medium further "tightening belts") on the shoulder strap to - Super to be packed, respectively (Duch, the subdivision of the main compartment) can be seen during the day - Compartment and holder for hydration bag / hose available - Super many possibilities sticks, snow shoes, etc. to attach externally - Walked with 12kg weight, was absolutely without any problems !! - Only the dead weight strikes with good 2kg to Beech, interferes with the excellent wear properties not, however, - Value for money super