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Osprey Exos 38 vs Osprey Stratos 36

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

Osprey Exos 38 is the lighter option — 120 g lighter than the Osprey Stratos 36 (9% less weight). If grams matter to you, that is the one to beat.
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Spec Osprey Exos 38 Osprey Stratos 36
Weight 1,190 g · 1.190 kg · 2.62 lb 1,310 g · 1.310 kg · 2.89 lb
Brand Osprey Osprey
Category Backpack Backpack
Osprey Exos 38
1,190 g

Ultralight ventilated multi-day pack with AirSpeed suspended mesh backpanel and removable top lid for fast-and-light backpacking.

See it in your base weight → Full details →
Osprey Stratos 36
1,310 g

Ventilated 36L day and overnight pack with AirSpeed suspension.

See it in your base weight → Full details →

Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.

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Osprey Exos 38 vs Osprey Stratos 36: which should you buy?

If saving weight is your priority, the Osprey Exos 38 wins — at 1,190 g it is 120 g (9%) lighter than the Osprey Stratos 36 (1,310 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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