Aether™ 55 Backpack - Red

The Osprey Aether 55 is typically a standard 55-liter volume pack. For fit, you need to measure your torso length from the C7 vertebra to your iliac crest. The pack's adjustable torso system (and Fit-on-the-Fly components) then allows you to customize it precisely to your measured length for an optimal fit.

The pack is made of nylon with a PFC-free DWR (Durable Water Repellent) coating, which provides good resistance to light rain and moisture. For sustained or heavy rain, the pack includes an integrated raincover that should be deployed to keep your gear dry.

The '55' in its name refers to its 55-liter capacity. This is generally sufficient for 3-7 day backpacking trips, depending on the bulkiness of your gear, the season, and how efficiently you pack.

Yes, for general cleaning, spot clean with a damp cloth and mild soap. For a more thorough clean, hand wash in a tub with lukewarm water and a gentle, non-detergent soap. Rinse thoroughly and ensure it is completely air dried out of direct sunlight before storage.

'Fit-on-the-Fly' is Osprey's system that allows you to adjust the length and padding of the shoulder straps and hipbelt while you are wearing the pack. This enables micro-adjustments for a personalized, dynamic fit that can be optimized on the trail as your body or load changes.

The Osprey Aether 55 is listed as a Unisex product. Its highly adjustable torso length, shoulder straps, and hipbelt, including the `Fit-on-the-Fly` features, allow it to be customized to comfortably fit a wide range of body shapes and sizes, including women.

Bluesign-approved nylon means the fabric is produced using methods that conserve resources, minimize environmental impact, and protect worker health and safety. PFC-free DWR refers to a durable water repellent coating that is free from perfluorinated chemicals, which are harmful to the environment.

Re-evaluate your fit. Ensure the hipbelt is correctly positioned on your hip bones, torso length is adjusted properly, and shoulder straps are snug. Use the `Fit-on-the-Fly` adjustments on shoulder straps and hipbelt to fine-tune the padding placement. Distribute load evenly inside the pack, placing heavier items close to your back.

Deploy the integrated raincover immediately in heavy rain. The DWR coating provides resistance to light moisture, but for persistent or heavy precipitation, the raincover is essential. Check if the raincover is deployed correctly and fully covering the pack. Consider re-applying a DWR treatment if the original coating has worn off.

Tighten your hipbelt and shoulder straps. Ensure load lifters are snug to pull the pack closer to your upper back. Adjust the sternum strap to stabilize the shoulder straps. Repack heavy items closer to your back and centered to improve the center of gravity.

Clean the zippers with a small brush or damp cloth to remove any dirt or debris. Apply a silicone-based zipper lubricant or beeswax to the zipper teeth to help them glide smoothly. Avoid forcing sticky zippers.

Ensure you are making adjustments while wearing the pack and with some load, as this provides tension. If still stiff, check for any obstructions in the adjustment mechanism. Regularly clean around the adjustment points to prevent dirt buildup.