Hello everyone,
Long time reader, first time poster here.  I am currently in the market for a new backpack, but I really have no experience with backpacks other than the cheap $30 Jansport backpacks I used in high school and college.  I am looking for a backpack for every day carry, large enough to carry a good deal of tools and equipment, and durable enough so that it will not rip or tear even with lots of use.  I'm not necessarily looking for someone to recommend a specific backpack, but rather a good brand that I can look into and make my own decision on the exact model.  If anyone has any brand recommendations, I'd really love to hear them.  Thanks in advance,
Dave