Osprey Aether Plus 100L Backpack – Men's Backpacking Pack, Axo Green, L/XL | Custom Fit & DayLid

Big-Volume comfort for serious adventures

The Osprey Aether Plus 100L is built for long trips where comfort and balance matter as much as capacity. In the striking Axo Green, this pack presents a rugged silhouette that stays close to your body, helping you move with steadiness as terrain changes from smooth trail to rocky steps.

Designed to adapt to a range of body types, the Custom Fit-on-the-Fly system lets you tailor the hipbelt, shoulder straps, and torso length. The result is a pack that feels like an extension of your frame, reducing fatigue on multi-day routes and keeping the weight centered when you’re navigating technical sections.

The Aether Plus 100L also focuses on practical versatility. A removable top lid converts into a DayLid daypack for quick exits from camp or short summit pushes. A dedicated zippered sleeping bag compartment with a removable divider helps you keep bulky layers separate from your core essentials, so you’re not searching through gear at dawn.

Weather-ready design anchors the pack for variable conditions. The raincover is included, and the shell uses bluesign-approved fabrics with a DWR treatment that is PFAS-free, providing a lightweight shield when clouds roll in. Inside, structured organization and a stable, close-to-body carry help you access essentials without slowing your pace.

What to expect on the trail — a pack that balances substantial capacity with a controlled feel. The Aether Plus 100L supports heavier loads on rough sections, while thoughtful details like a detachable DayLid and easy-access compartments help streamline camp routines and gear transitions.

Key design features at a glance

• Custom Fit-on-the-Fly hipbelt, shoulder straps, and adjustable torso length for a fine-tuned fit
• Stable, close-to-body carry designed for heavier loads on technical terrain
• Removable top lid that converts to DayLid for lightweight carry on shorter legs
• Included raincover and bluesign-approved fabrics with PFAS-free DWR for weather resilience
• Zippered sleeping bag compartment with removable divider for easy gear separation
• Overall dimensions and weight support a robust, long-haul packing experience (approx. 34.3H x 16.5W x 15.7D in; 6.69 lb)

• Durable, weather-aware construction crafted for extended expeditions
• Flexible use with DayLid conversion and organized storage zones
• Axо Green colorway stands out while blending with natural environments