I have been looking for a backpack that is not a typical laptop bag. After much looking around it came down to Oakley Icon and NorthFace Big Shot. I ordered the north face big shot which is a pretty sweet design for my needs. But, I noticed that the fabric on it feels kind of light and plastic kind... So, started looking around more about the fabrics used.
It turns out the big shot I got is made of 420 D, 840D hypalon. I think most places on it has 420D except the base. I went back to check Oakley's fabric that looks like a PVC 2300 and spire usa that uses 1680D...
My question to you all - what is good enough for a backpack that will cary a laptop and will be used for day trips, backpacking from time to time, etc. I was going to buy a brain-cell from tom bihn or some thing similar (sleeve) to carry my laptop in but I don't want to put it in a bag that will rip off as soon as I start walking with it.