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Montane Alpine 850 Lite vs Rab Microlight Alpine Down

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

Montane Alpine 850 Lite is the lighter option — 57 g lighter than the Rab Microlight Alpine Down (17% less weight). If grams matter to you, that is the one to beat.
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Spec Montane Alpine 850 Lite Rab Microlight Alpine Down
Weight 285 g · 0.285 kg · 0.63 lb 342 g · 0.342 kg · 0.75 lb
Brand Montane Rab
Category Clothing - Mid Layer Clothing - Mid Layer
Montane Alpine 850 Lite
285 g

Ultralight down jacket with 140g of 850+ fill power HyperDRY down. Water-resistant insulation for alpine expeditions requiring minimal weight penalty.

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Rab Microlight Alpine Down
342 g

750-fill down jacket with Pertex Quantum shell.

Full details →

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Montane Alpine 850 Lite vs Rab Microlight Alpine Down: which should you buy?

If saving weight is your priority, the Montane Alpine 850 Lite wins — at 285 g it is 57 g (17%) lighter than the Rab Microlight Alpine Down (342 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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