When you compare our external frame packs to some of our competitors, you'll quickly notice that you get more features and a lower price with ALPS... without sacrificing quality. As ALPS's reputation for quality packs has grown, we've had numerous requests for external packs, so we've designed 3 models that are worth checking out. The Zion has a sleeping bag compartment and top loading access. There are various pockets to keep your gear organized and important items handy. The padded shoulder straps have multiple positions so you can adjust the pack to fit your body. The features found on the Zion make this pack top of the line!