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Patagonia Micro Puff Jacket vs Rab Alpha Flash Lightweight Fleece

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

Patagonia Micro Puff Jacket is the lighter option — 28 g lighter than the Rab Alpha Flash Lightweight Fleece (11% less weight). If grams matter to you, that is the one to beat.
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Spec Patagonia Micro Puff Jacket Rab Alpha Flash Lightweight Fleece
Weight 227 g · 0.227 kg · 0.50 lb 255 g · 0.255 kg · 0.56 lb
Brand Patagonia Rab
Category Clothing - Mid Layer Clothing - Mid Layer
Patagonia Micro Puff Jacket
227 g

Ultralight PlumaFill synthetic insulated jacket.

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Rab Alpha Flash Lightweight Fleece
255 g

Ultralight fleece with Polartec Alpha Direct 120 insulation. Men's Large: 272g. Slim fit, brushed back, flatlock seams, YKK zips.

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Patagonia Micro Puff Jacket vs Rab Alpha Flash Lightweight Fleece: which should you buy?

If saving weight is your priority, the Patagonia Micro Puff Jacket wins — at 227 g it is 28 g (11%) lighter than the Rab Alpha Flash Lightweight Fleece (255 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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