I'm not an expert on backpacking, but work with folks who are. I wanted to go on an extended outing and turned myself into a gear geek. I did my research and decided on the Aether AG 70. It's plenty large enough to haul everything I want/need. Love the various storage pockets. I went on a 5 day hike on the Foothills Trail and have no regrets on my gear. I'd buy the same pack again and suggest it to others as well.