The ActivLift System harness is constructed to mimic the natural "S" curve of the back, transfer more weight from waist to hips, make it easy to fit to the length of your torso, and include airflow channels to improve breathability. High-performance tech fabrics -- from 630D high-density nylon Oxford body to 1000D Cordura base provides superior abrasion, tear and water resistance plus durability, without adding extra weight.A hydration-ready side pocket with a seam-sealed pouch offers easy access to 70 oz. (2L) of liquid from a hydration reservoir (not included).Pack the maximum amount of gear and micro-adjust for a snug and secure fit with the patent-pending MaxFit System of padded and adjustable dividers.Attach and access extra gear via the tuck-away tripod holder, tall mesh side pockets and bottom compression strapsRemove the protective backpack lid and use as a wearable waistpack – it features multiple pockets and a mesh-covered backpack for comfort.