Hi Gear Nepal 65 Rucksack:
The Nepal 65 is a large capacity backpack that's suitable for travel or backpacking cross-country.
It has a padded waist belt, and a chest strap to keep your load securely next to your body for the least strain.
There's also a lower sleeping bag compartment, seperated by zip, so you can organise and compartmentalise your kit.
Rugged and durable, it'll cope with your heavy loads for as long as it takes.