Big Agnes String Ridge VST 1.5 vs Zpacks Duplex Pro

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

Big Agnes String Ridge VST 1.5 is the lighter option — 13 g lighter than the Zpacks Duplex Pro (2% less weight). If grams matter to you, that is the one to beat.

Spec	Big Agnes String Ridge VST 1.5	Zpacks Duplex Pro
Weight	539 g · 0.539 kg · 1.19 lb	552 g · 0.552 kg · 1.22 lb
Brand	Big Agnes	Zpacks
Category	Shelter	Shelter

Big Agnes String Ridge VST 1.5

539 g

2026 single-wall shelter in HyperBead fabric for 1-1.5 persons, from Big Agnes' new VST collection. Trail weight starts at 539g.

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Zpacks Duplex Pro

552 g

Two-person trekking-pole tent built from DCF, one of the lightest double-wall-style shelters with two doors and vestibules.

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Big Agnes String Ridge VST 1.5 vs Zpacks Duplex Pro: which should you buy?

If saving weight is your priority, the Big Agnes String Ridge VST 1.5 wins — at 539 g it is 13 g (2%) lighter than the Zpacks Duplex Pro (552 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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