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Gossamer Gear Gorilla 40 vs Hyperlite Mountain Gear Summit 30 Backpack

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

Hyperlite Mountain Gear Summit 30 Backpack is the lighter option — 268 g lighter than the Gossamer Gear Gorilla 40 (41% less weight). If grams matter to you, that is the one to beat.
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Spec Gossamer Gear Gorilla 40 Hyperlite Mountain Gear Summit 30 Backpack
Weight 651 g · 0.651 kg · 1.44 lb 383 g · 0.383 kg · 0.84 lb
Brand Gossamer Gear Hyperlite Mountain Gear
Category Backpack Backpack
Gossamer Gear Gorilla 40
651 g

Lightweight 40L weekend pack with internal frame.

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Hyperlite Mountain Gear Summit 30 Backpack
383 g

Ultralight 30L daypack in white, 13.5 oz, perfect for day hikes and FKT attempts

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Gossamer Gear Gorilla 40 vs Hyperlite Mountain Gear Summit 30 Backpack: which should you buy?

If saving weight is your priority, the Hyperlite Mountain Gear Summit 30 Backpack wins — at 383 g it is 268 g (41%) lighter than the Gossamer Gear Gorilla 40 (651 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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