Zodiak 25 Ramblesack.
This convenient 25 litre ramblesack is ideal for a day in the hills and it is equally at home in an urban environment. It has a Supercool back system with a wind tunnel to maintain ventilation and an easy-access hydration sleeve to quench your thirst as you walk. The main compartment (which is large enough to hold A4 files, making is useful for school and college use) has an internal organiser and is supplemented by a large front pocket, a front stretch mesh pocket, mesh stash pockets and a front shock cord carrying system.
It has a removable waist belt, a sliding chest strap, a grab handle, a walking pole attachment point, a key clip and a rain cover in case you're caught out by the elements.