Haglöfs Top 60-75

This men’s backpacking rucksack is a very stable carry; adjustable back length; lid converts to belt bag; wand pockets; side compression straps; bellows side pockets; hydration system-compatible; front compression panel/pocket; excellent space for head movement. But 3600g is heavy; quite a lumpy firm back; floating lid can allow water into main compartment. 

Verdict: Buy it if you want a stable load-lugger for heavier loads.