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Patagonia Nano Puff Jacket vs Rab Cirrus Flex 2.0 Jacket

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

Rab Cirrus Flex 2.0 Jacket is the lighter option — 46 g lighter than the Patagonia Nano Puff Jacket (13% less weight). If grams matter to you, that is the one to beat.
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Spec Patagonia Nano Puff Jacket Rab Cirrus Flex 2.0 Jacket
Weight 341 g · 0.341 kg · 0.75 lb 295 g · 0.295 kg · 0.65 lb
Brand Patagonia Rab
Category Clothing - Mid Layer Clothing - Mid Layer
Patagonia Nano Puff Jacket
341 g

PrimaLoft insulated jacket. Packable and water-resistant.

Full details →
Rab Cirrus Flex 2.0 Jacket
295 g

Synthetic insulated jacket for damp conditions.

Full details →

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Patagonia Nano Puff Jacket vs Rab Cirrus Flex 2.0 Jacket: which should you buy?

If saving weight is your priority, the Rab Cirrus Flex 2.0 Jacket wins — at 295 g it is 46 g (13%) lighter than the Patagonia Nano Puff Jacket (341 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 clothing - mid layer page, or browse the full gear weight database.

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