Good school bag/pack/backpack/messenger bag, etc

<p>What’s the most…durable bag? Like, I tend to just drop my bag a lot and I’ve done that with a laptop and spiffy calculator, oddly the only thing to ever brake is my mp3 screen. My bag is some off brand skateboard bag so I think the extra bottom support helps it. Still, it’s barely there right now and I need a new one.</p>