I’m sure there was a thread somewhere, I’ll have a look.
I’ve got Decathlon jobber, @gingerbongo & @jeffb have Osprey ones.
I’d look at Harrier nowadays.
ETA (1)…found it, it’s quite an old thread.
ETA (2)…5ltrs is perfect size for a couple of softflasks, waterproofs, hat/gloves, phone & a bit of grub