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Gossamer Gear Elixir 20 Daypack vs Hyperlite Mountain Gear Southwest 40

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

Gossamer Gear Elixir 20 Daypack is the lighter option — 621 g lighter than the Hyperlite Mountain Gear Southwest 40 (78% less weight). If grams matter to you, that is the one to beat.
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Spec Gossamer Gear Elixir 20 Daypack Hyperlite Mountain Gear Southwest 40
Weight 176 g · 0.176 kg · 0.39 lb 797 g · 0.797 kg · 1.76 lb
Brand Gossamer Gear Hyperlite Mountain Gear
Category Backpack Backpack
Gossamer Gear Elixir 20 Daypack
176 g

Roll-top daypack made with waterproof welded ALUULA for reliable wet weather use.

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Hyperlite Mountain Gear Southwest 40
797 g

Bombproof DCF frameless backpack built for off-trail travel. 40L capacity with roll-top closure and durable Dyneema fabric for all-weather adventures.

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Gossamer Gear Elixir 20 Daypack vs Hyperlite Mountain Gear Southwest 40: which should you buy?

If saving weight is your priority, the Gossamer Gear Elixir 20 Daypack wins — at 176 g it is 621 g (78%) lighter than the Hyperlite Mountain Gear Southwest 40 (797 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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