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Osprey Aether 65 vs Osprey Eja Pro 55

Weight and specs compared for 2026 — and which one to choose.

No winner on weight yet. The recorded weights have not both been verified on the same basis. Size, included parts and single-item versus pair weights can differ. Check the linked sources before choosing a replacement.

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Spec Osprey Aether 65 Osprey Eja Pro 55
Weight 2,210 g · 2.210 kg · 4.87 lb 876 g · 0.876 kg · 1.93 lb
Brand Osprey Osprey
Category Backpack Backpack
Osprey Aether 65
2,210 g

Heavy-load backpacking pack with Fit-on-the-Fly adjustable harness and hipbelt and an AirScape backpanel for extended trips.

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Osprey Eja Pro 55
876 g

Women's sub-1kg thru-hiking pack built from UHMWPE fabric with an AirSpeed suspended mesh back and removable top lid.

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Osprey Aether 65 vs Osprey Eja Pro 55: which should you buy?

The listed weights alone are not enough to choose between these products. Confirm the size, included parts and weight basis against each source; choose equipment for the function and fit you need.

See where both rank against everything else in this category on the lightest backpack page, or browse the full gear weight database.

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