How big of a backpack do I need for a 17 inch laptop?

How big of a backpack do I need for a 17 inch laptop

It seems like the world champions the 17 inch laptop and ignores it at the same time. Most laptop backpacks are made for 15.6-inch laptops. It’s annoying but we need to make sure unmarked backpacks can hold our big 17 inch screen laptops. The question is, how big of a backpack do I need for …

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