Six Moon Designs Lunar Duo vs Tarptent StratoSpire 2 Li

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

Six Moon Designs Lunar Duo is the lighter option — 3 g lighter than the Tarptent StratoSpire 2 Li (0% less weight). If grams matter to you, that is the one to beat.

Spec	Six Moon Designs Lunar Duo	Tarptent StratoSpire 2 Li
Weight	850 g · 0.850 kg · 1.87 lb	853 g · 0.853 kg · 1.88 lb
Brand	Six Moon Designs	Tarptent
Category	Shelter	Shelter

Six Moon Designs Lunar Duo

850 g

Spacious 2-person trekking pole shelter with side entry.

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Tarptent StratoSpire 2 Li

853 g

Lightweight double-wall two-person Dyneema shelter pitched with two trekking poles. 2025 update fits two wide pads side by side.

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Six Moon Designs Lunar Duo vs Tarptent StratoSpire 2 Li: which should you buy?

If saving weight is your priority, the Six Moon Designs Lunar Duo wins — at 850 g it is 3 g (0%) lighter than the Tarptent StratoSpire 2 Li (853 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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