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Aarn Featherlite Freedom Pack (Medium) vs Osprey Exos Pro 55

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

Osprey Exos Pro 55 is the lighter option — 489 g lighter than the Aarn Featherlite Freedom Pack (Medium) (36% less weight). If grams matter to you, that is the one to beat.
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Spec Aarn Featherlite Freedom Pack (Medium) Osprey Exos Pro 55
Weight 1,351 g · 1.351 kg · 2.98 lb
Medium back size, excluding liner (page: '+ liner')
 862 g · 0.862 kg · 1.90 lb
Brand Aarn Osprey
Category Backpack Backpack
Aarn Featherlite Freedom Pack (Medium)
1,351 g

Revolutionary body-worn backpack distributing load directly to hips and core. Adjustable for optimal comfort. Medium size rated for multi-day trips with natural...

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Osprey Exos Pro 55
862 g

Ultralight thru-hiking pack with ventilated AirSpeed back panel and removable lid, in 100D nylon ripstop. Nearly a pound lighter than the Exos 58.

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Aarn Featherlite Freedom Pack (Medium) vs Osprey Exos Pro 55: which should you buy?

If saving weight is your priority, the Osprey Exos Pro 55 wins — at 862 g it is 489 g (36%) lighter than the Aarn Featherlite Freedom Pack (Medium) (1,351 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

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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