Every great pack starts with solving a problem – and for NEMO's Persist range, that problem was the sweaty, sticky back that ruins long days in the mountains. The game-changer is NEMO's exclusiveCCubed wicking fabric that wraps around your back, actively drawing moisture away instead of trapping it like traditional packs. Whether you're after the nimble 30L for day adventures or the versatile 45L for overnighters, both sizes combine that revolutionary back panel with thoughtful features like tuck-away water bottle pockets, modular compression systems, and zippered storage on the shoulder straps and hip belt. Built from tough recycled ripstop with reinforced bases and backed by NEMO's design expertise from nearly two decades of creating award-winning outdoor gear, they're engineered for year-round abuse – from winter scrambles to summer wild camps. It's the difference between enduring your pack and actually enjoying the journey.