Im travelling to london for the majority of my week to a music college and my fender gigbag just isnt thick enough or spacious enough, so i'm looking to upgrade.. Anyone have any particular recommendations?

I'm in the UK and i was looking at the thomann website which seems to have loads but its difficult to grasp quality/size over the internet. I have a budget of around £70..
Not a huge amount, i have 3 A4 notepads, which total about 3inches in thickness, not a lot but doesn't fit in my current bag so yeah. Then just other stuff like leads, tuners, a boss pedal occasionally and other random stuff like stationary and string packets etc. It'd just be easier to carry everything in my gig bag instead of carrying a gym bag around too.