Check out the Deuter Trail Pro line too. The access to the main compartment is both from the top and the front - which zips open all round. It’s really handy for getting to an insert, rather than having to pull everything out from the top lid. I have the 30 litre version and wish I’d opted for the 36 as it’s a little tight for the insert, although I could get away with a smaller insert. It’s a really comfortable pack too. I also have a Jack Wolfskin (Highland Trail I think) pack which opens the same - from the top and front access. This one is 50 litre and carries more than enough for a full day out. Again a comfortable pack.