Black Diamond Stormline Stretch Rain Shell vs Rab Downpour Light Jacket

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

Rab Downpour Light Jacket is the lighter option — 1 g lighter than the Black Diamond Stormline Stretch Rain Shell (0% less weight). If grams matter to you, that is the one to beat.

Spec	Black Diamond Stormline Stretch Rain Shell	Rab Downpour Light Jacket
Weight	220 g · 0.220 kg · 0.49 lb	219 g · 0.219 kg · 0.48 lb
Brand	Black Diamond	Rab
Category	Clothing - Outer Layer	Clothing - Outer Layer

Black Diamond Stormline Stretch Rain Shell

220 g

Packable waterproof shell with stretch for climbing.

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Rab Downpour Light Jacket

219 g

Packable 2.5L waterproof jacket with fully taped seams and helmet-compatible hood; packs to softball size, 7.7 oz for all-day rain protection.

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Black Diamond Stormline Stretch Rain Shell vs Rab Downpour Light Jacket: which should you buy?

If saving weight is your priority, the Rab Downpour Light Jacket wins — at 219 g it is 1 g (0%) lighter than the Black Diamond Stormline Stretch Rain Shell (220 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 - outer layer page, or browse the full gear weight database.

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