Six Moon Designs Lunar Duo vs Tarptent StratoSpire 2 Li
Weight and specs compared for 2026 — and which one to choose.
Spacious 2-person trekking pole shelter with side entry.
Lightweight double-wall two-person Dyneema shelter pitched with two trekking poles. 2025 update fits two wide pads side by side.
Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.
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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 Tarptent StratoSpire 2 Li wins — at 853 g it is 417 g (33%) lighter than the Six Moon Designs Lunar Duo (1,270 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.