I initially saw this rucksack when I was on holiday and decided to purchase this via Amazon as it was far cheaper. I love this rucksack!! It's surprisingly spacious in the main compartment which also has a neoprene pouch against the back of the bag to put your Ipad, netbook or laptop in. What I really like is the fact that this pouch is well padded at the base and doesn't run all the way down to the bottom of the backpack like many others keeping my ipad safe when I put the rucksack down.
The bag's zips have good sized holes in to allow you attach locks on if you wish and is part of the reason why I bought it. The back of the bag is very well padded all the way along your back and the straps have a chest strap and a waist strap for relieving the pressure from your shoulders when full or heavy. There are 2 vertical outer compartments which can be accessed easily on the move when slung from one shoulder and are ideal size for maps and guidebooks when on the move. I've been looking for a rucksack like this for ages and would definitely recommend it.