Lowe Alpine TFX Appalachian 65L+15 Rucksack:  

Constructed with a TFX (Torso Fit Expedition Fit System) back system, this rucksack allows you to easily change and later the strapping, fit and back of the pack to fit you perfectly.  

It also has plenty of features for those longer trips away.  Large side pockets and a zip out divider in the main compartment to split your essentials from your emergency gear.  Also the hydration system is fitted for any bladder (not included) and there is a gear attachment for when walking poles are necessary.  

Made from a robust and durable fabric that wil last a life time, the Apalachian is a perfect choice for expeditions, longer day walks and Duke of Edinburgh trips.