With over four decades of design and manufacturing experience – coupled with simultaneous in-the-field testing and real-world hammering – we've learned a thing or two about load transfer, active framing and the importance of using only the most top-shelf materials. Here you'll find a detailed explanation of our Load Carriage™ credo, our patented custom fitting, as well as all of the time-tested design features and proven engineering that makes our packs the most comfortable and durable for the long haul.