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Big Agnes String Ridge VST 1.5 vs Zpacks Offset Duo
Weight and specs compared for 2026 — and which one to choose.
Big Agnes String Ridge VST 1.5 is the lighter option — 11 g lighter than the Zpacks Offset Duo (2% less weight). If grams matter to you, that is the one to beat.
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.
Check price Full details →Zpacks Offset Duo
550 g
Single-wall Dyneema two-person tent with two doors and vestibules, using an offset ridgeline and a third foot pole for headroom.
Check price Full details →Big Agnes String Ridge VST 1.5 vs Zpacks Offset Duo: which should you buy?
If saving weight is your priority, the Big Agnes String Ridge VST 1.5 wins — at 539 g it is 11 g (2%) lighter than the Zpacks Offset Duo (550 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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