Zpacks 7x9 Flat Tarp vs Zpacks Duplex

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

Zpacks 7x9 Flat Tarp is the lighter option — 371 g lighter than the Zpacks Duplex (73% less weight). If grams matter to you, that is the one to beat.

Spec	Zpacks 7x9 Flat Tarp	Zpacks Duplex
Weight	139 g · 0.139 kg · 0.31 lb	510 g · 0.510 kg · 1.12 lb
Brand	Zpacks	Zpacks
Category	Shelter	Shelter

Zpacks 7x9 Flat Tarp

139 g

Minimalist DCF tarp shelter at 139g. Provides 7x9 ft coverage with 8 tie-out loops. Best for experienced tarpers in fair weather.

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Zpacks Duplex

510 g

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

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Zpacks 7x9 Flat Tarp vs Zpacks Duplex: which should you buy?

If saving weight is your priority, the Zpacks 7x9 Flat Tarp wins — at 139 g it is 371 g (73%) lighter than the Zpacks Duplex (510 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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