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REI Co-op Passage 2 vs Zpacks Duplex

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

Zpacks Duplex is the lighter option — 1,440 g lighter than the REI Co-op Passage 2 (74% less weight). If grams matter to you, that is the one to beat.
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Spec REI Co-op Passage 2 Zpacks Duplex
Weight 1,950 g · 1.950 kg · 4.30 lb 510 g · 0.510 kg · 1.12 lb
Brand REI Co-op Zpacks
Category Shelter Shelter
REI Co-op Passage 2
1,950 g

Durable and affordable 2-person backpacking tent.

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Zpacks Duplex
510 g

Dyneema 2-person trekking pole shelter. Legendary ultralight option.

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REI Co-op Passage 2 vs Zpacks Duplex: which should you buy?

If saving weight is your priority, the Zpacks Duplex wins — at 510 g it is 1,440 g (74%) lighter than the REI Co-op Passage 2 (1,950 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 shelter page, or browse the full gear weight database.

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