The Aether Plus 85 blazes the trail for those in search of a customizable. perfect-fitting pack. One of our largest volume packs with a stronger LightWire frame. this pack offers a stable carry that can manage the heaviest of loads. Dial in the perfect fit with a Custom Fit-On-The-Fly Hipbelt and Shoulder Strap and detach the top lid to use as a daypack for side trips. Constructed with high quality bluesign®-approved high-tenacity nylon and PFC-free DWR.