Greg, Mike and Jeff Lowe were raised on the move, spending their childhood climbing, skiing, hunting and hiking. By their twenties, the Lowe brothers were the leading climbers of their generation, but they hit a wall: the external backpacks available to them at the time were too heavy and unstable to progress further in the mountains. They realised that they needed a new kind of pack that could carry gear more securely, whilst letting them move more freely on demanding terrain.