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Montane Protium Lite Hooded Fleece vs Rab Alpha Flash Lightweight Fleece

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

Rab Alpha Flash Lightweight Fleece is the lighter option — 6 g lighter than the Montane Protium Lite Hooded Fleece (2% less weight). If grams matter to you, that is the one to beat.
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Spec Montane Protium Lite Hooded Fleece Rab Alpha Flash Lightweight Fleece
Weight 261 g · 0.261 kg · 0.58 lb 255 g · 0.255 kg · 0.56 lb
Brand Montane Rab
Category Clothing - Mid Layer Clothing - Mid Layer
Montane Protium Lite Hooded Fleece
261 g

Lightweight fleece at 261g. 35% lighter fabric than standard Protium with Thermo Grid Lite.

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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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Montane Protium Lite Hooded Fleece vs Rab Alpha Flash Lightweight Fleece: which should you buy?

If saving weight is your priority, the Rab Alpha Flash Lightweight Fleece wins — at 255 g it is 6 g (2%) lighter than the Montane Protium Lite Hooded Fleece (261 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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