I bought this exact backpack back in April on Amazon and paid £36. I am very happy with the quality, etc! I bought it for day to day commuter purpose and the bag is still as good as new! This is a great price! Heat from me!
This is different it's Tesco's own but comparison to what the reviews are like for that one, this one seems to be better value to be honest it's made of a waterproof liner and can fit everything for me with plenty padding for laptop has a tablet pocket too and this one if I remember is classed as 22l aswell buddy
Yours looks different than this, Could be a bit bigger?
I got this one from Tesco £21.99. The quality is amazing feels great on your back and fits my 15.6inch with the charger, all my work stuff and stuff for a night away all fits plus still has space!