I’m a wildland firefighter and Mystery Ranch is the most popular choice for the packs that we wear on the fire line. I also have a giant Mystery Ranch duffle bag that I use to haul around all of my gear for our 2-3 week “deployments” (called a ‘roll’). It holds everything I need to camp out and do my job for that period of time. Seriously well-made packs that are very well thought out for the tasks they’re designed for.