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Rab Mythic Alpine Light Jacket vs Rab Mythic Ultra Jacket

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

Rab Mythic Alpine Light Jacket is the lighter option — 285 g lighter than the Rab Mythic Ultra Jacket (53% less weight). This is a comparison of source-listed weights, not a recommendation or a HikeLoad measurement.
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Spec Rab Mythic Alpine Light Jacket Rab Mythic Ultra Jacket
Weight 252 g · 0.252 kg · 0.56 lb
men's M
 537 g · 0.537 kg · 1.18 lb
men's M
Brand Rab Rab
Category Clothing - Mid Layer Clothing - Mid Layer
Rab Mythic Alpine Light Jacket
252 g

900 fill power goose down with PrimaLoft Gold, 8.8oz, ultralight insulation jacket

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Rab Mythic Ultra Jacket
537 g

Premium ultralight down jacket with 900FP hydrophobic down and TILT zoned insulation in a lightweight Atmos shell, built for cold alpine conditions.

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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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Rab Mythic Alpine Light Jacket vs Rab Mythic Ultra Jacket: which should you buy?

If saving weight is your priority, the Rab Mythic Alpine Light Jacket has the lower listed weight — at 252 g it is 285 g (53%) lighter than the Rab Mythic Ultra Jacket (537 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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