Gossamer Gear Kumo 36 Superlight vs Osprey Exos 48

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

Gossamer Gear Kumo 36 Superlight is the lighter option — 866 g lighter than the Osprey Exos 48 (68% less weight). If grams matter to you, that is the one to beat.

Spec	Gossamer Gear Kumo 36 Superlight	Osprey Exos 48
Weight	414 g · 0.414 kg · 0.91 lb	1,280 g · 1.280 kg · 2.82 lb
Brand	Gossamer Gear	Osprey
Category	Backpack	Backpack

Gossamer Gear Kumo 36 Superlight

414 g

Frameless 36L ultralight pack in recycled Robic nylon, ideal for day hikes and minimalist overnight loads up to 25 lbs.

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Osprey Exos 48

1,280 g

Lightweight 48L thru-hiking pack with excellent ventilation.

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Gossamer Gear Kumo 36 Superlight vs Osprey Exos 48: which should you buy?

If saving weight is your priority, the Gossamer Gear Kumo 36 Superlight wins — at 414 g it is 866 g (68%) lighter than the Osprey Exos 48 (1,280 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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