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Nemo Flyer vs Rab Mythic Ultra 180 (32°F)

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

Rab Mythic Ultra 180 (32°F) is the lighter option — 252 g lighter than the Nemo Flyer (39% less weight). If grams matter to you, that is the one to beat.
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Spec Nemo Flyer Rab Mythic Ultra 180 (32°F)
Weight 652 g · 0.652 kg · 1.44 lb 400 g · 0.400 kg · 0.88 lb
Brand Nemo Rab
Category Sleep System Sleep System
Nemo Flyer
652 g

Self-inflating baffled air sleeping pad with 5cm of foam-backed comfort and a regular packed weight around 650g.

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Rab Mythic Ultra 180 (32°F)
400 g

Ultra-lightweight 3-season sleeping bag weighing just 14.1 oz (400g) with 900-fill hydrophobic goose down and titanium technology.

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Nemo Flyer vs Rab Mythic Ultra 180 (32°F): which should you buy?

If saving weight is your priority, the Rab Mythic Ultra 180 (32°F) wins — at 400 g it is 252 g (39%) lighter than the Nemo Flyer (652 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 sleep system page, or browse the full gear weight database.

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