The Osprey Aether™ Plus 100 is a high-capacity expedition backpack engineered for heavy-load trekking, mountaineering, and multi-day wilderness travel. Its Custom Fit-on-the-Fly™ system and LightWire frame deliver exceptional load stability over technical terrain. Built with durable recycled fabrics, it’s designed for extended backcountry use.

Features

• 100L expedition capacity for extended trips

• Removable top lid converts to DayLid daypack

• Included PFAS-free raincover

• Fit-on-the-Fly™ hipbelt and shoulder straps

• Adjustable torso length for precision fit

• LightWire frame for enhanced load transfer

• AirScape™ ventilated backpanel

• Large front panel zip access

• Dual front zip pockets

• Reinforced shove-it front stash pocket

• Dual stretch mesh bottle pockets

• StraightJacket compression system

• Dual ice axe loops with bungee tie-offs

• Stow-on-the-Go trekking pole attachment

• Zippered sleeping bag compartment

• Removable sleeping pad straps

• Internal hydration sleeve

• Dual zip hipbelt pockets

• Floating lid with lash points

• Integrated FlapJacket lidless cover