Which backpack will enhance, rather than hamper, your travels?

In this group test for T3.com, I ask which backpack will see you travelling with a grin rather than grimace on your face? Each bag I selected for our top five is fit for purpose, be that purpose a cycle commute, a week canyonning, a hike up Mount Snowdon or just a trip to your mum’s for the weekend… Read my reviews here.