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Gossamer Gear Mirage 40 vs Hyperlite Mountain Gear 3400 Windrider

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

Gossamer Gear Mirage 40 is the lighter option — 130 g lighter than the Hyperlite Mountain Gear 3400 Windrider (19% less weight). If grams matter to you, that is the one to beat.
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Spec Gossamer Gear Mirage 40 Hyperlite Mountain Gear 3400 Windrider
Weight 550 g · 0.550 kg · 1.21 lb 680 g · 0.680 kg · 1.50 lb
Brand Gossamer Gear Hyperlite Mountain Gear
Category Backpack Backpack
Gossamer Gear Mirage 40
550 g

40L frameless ultralight pack crafted from ALUULA Graflyte fabric, one of the lightest full-featured backpacks available in 2026.

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Hyperlite Mountain Gear 3400 Windrider
680 g

Versatile Dyneema 55L pack with roll-top closure.

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Gossamer Gear Mirage 40 vs Hyperlite Mountain Gear 3400 Windrider: which should you buy?

If saving weight is your priority, the Gossamer Gear Mirage 40 wins — at 550 g it is 130 g (19%) lighter than the Hyperlite Mountain Gear 3400 Windrider (680 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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