This was the biggest size available at the store so I went for this.. I am satisfied with the backpack in general . Two mains issues I have are 1. The shoulder straps are narrow and even though they are well padded tend to dig into your shoulder when loaded to the full. 2 there is no way I can lock the main compartment securely even using a cable lock .
Went to Thailand in november and thought to buy a backpack since we had to travel all over the country because I thought it would be more practical...and it was!!!
Very comfortable, spacious and with a very usefull zip that allows you to use the backpack as a luggage. brilliant.