Montane Protium Lite Hooded Fleece vs Rab Alpha Flash
Weight and specs compared for 2026 — and which one to choose.
Lightweight fleece at 261g. 35% lighter fabric than standard Protium with Thermo Grid Lite.
Lightweight fleece jacket using Polartec Alpha Direct fabric. Breathable and packable mid-layer for expeditions with minimalist weight philosophy.
Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.
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Montane Protium Lite Hooded Fleece vs Rab Alpha Flash: which should you buy?
If saving weight is your priority, the Montane Protium Lite Hooded Fleece wins — at 241 g it is 14 g (5%) lighter than the Rab Alpha Flash (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.