So what is the size limit for backpacks we can bring into the venue? Can we bring in a backpack that would be used for school or does it have to be smaller than that?

Not sure. But if your seats are in the Terrace section there is not much room between the seats. Plus if you have a lot of stuff it will take time to go through the whole bag at security. Hope this helps

All bags checked and scanned. School size ok. Camping size no. Many people bring blankets and cushions

Smaller like those fashion size backpacks that you see at payless or target