This is a sturdy backpack that is a good size - you can fit daily essentials in it and a bit of shopping, and it's ideal for overnight stays if you're not taking lots of changes of clothing. I really like that it's quite slimline so it looks more flattering than a very bulky backpack.
It has a separate zippered section on the back, a small zippered pouch at the front, and an internal pocket along the back to help you organise your items. The straps are comfortable and easily adjustable. And it will help protect the contents from the rain, perfect for the uk climate!