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Six Moon Designs Lunar Duo vs Slingfin Portal 2 Tent

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

Six Moon Designs Lunar Duo is the lighter option — 30 g lighter than the Slingfin Portal 2 Tent (2% less weight). If grams matter to you, that is the one to beat.
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Spec Six Moon Designs Lunar Duo Slingfin Portal 2 Tent
Weight 1,270 g · 1.270 kg · 2.80 lb
as listed; tent with stuff sacks and guy lines, excl. stakes and poles
 1,300 g · 1.300 kg · 2.87 lb
minimum weight
Brand Six Moon Designs Slingfin
Category Shelter Shelter
Six Moon Designs Lunar Duo
1,270 g

Spacious 2-person trekking pole shelter with side entry.

See it in your base weight → Full details →
Slingfin Portal 2 Tent
1,300 g

Sub-3lb freestanding 2P tent with dual doors and ample vestibule storage.

See it in your base weight → Full details →

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Six Moon Designs Lunar Duo vs Slingfin Portal 2 Tent: which should you buy?

If saving weight is your priority, the Six Moon Designs Lunar Duo wins — at 1,270 g it is 30 g (2%) lighter than the Slingfin Portal 2 Tent (1,300 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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