Deuter Quantum 70+10
The nice thing about the Quantum series of travel packs is their slim shape - no more getting stuck in bus doorways or side swiping innocent bystanders on the subway. The packs are quality made, durable and roomy, and they come with detachable daypacks. They've got a comfortable, breathable harness system with a load bearing aluminum frame for carrying loads heavier than you thought they would be.
The 70+10 has easy access to the main compartment through a u-shaped front zip. It's got a separate bottom compartment, grab handles, and an integrated cover with name tag that you can use to protect the bag during air travel or as a rain cover.
Weight: 2980 g
Volume: 70 + 10L (plus 18L daypack)
Size: 86 x 34 x 26 cm