La Sportiva Lumina 100 Down Jacket vs Rab Alpha Flash Lightweight Fleece
Weight and specs compared for 2026 — and which one to choose.
Sub-6-oz puffy with 2.5 oz of 1000 fp down fill for ultralight layering.
Full details →Ultralight fleece with Polartec Alpha Direct 120 insulation. Men's Large: 272g. Slim fit, brushed back, flatlock seams, YKK zips.
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La Sportiva Lumina 100 Down Jacket vs Rab Alpha Flash Lightweight Fleece: which should you buy?
If saving weight is your priority, the La Sportiva Lumina 100 Down Jacket wins — at 167 g it is 88 g (35%) 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.