Arc'teryx Alpha SL Jacket (men's) vs Black Diamond Stormline Stretch Rain Shell

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

Black Diamond Stormline Stretch Rain Shell is the lighter option — 7 g lighter than the Arc'teryx Alpha SL Jacket (men's) (3% less weight). If grams matter to you, that is the one to beat.

Spec	Arc'teryx Alpha SL Jacket (men's)	Black Diamond Stormline Stretch Rain Shell
Weight	227 g · 0.227 kg · 0.50 lb	220 g · 0.220 kg · 0.49 lb
Brand	Arc'teryx	Black Diamond
Category	Clothing - Outer Layer	Clothing - Outer Layer

Arc'teryx Alpha SL Jacket (men's)

227 g

The lightest GORE-TEX PRO shell in the Arc'teryx range, designed for alpine climbing with helmet-compatible hood and minimalist construction.

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Black Diamond Stormline Stretch Rain Shell

220 g

Packable waterproof shell with stretch for climbing.

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Arc'teryx Alpha SL Jacket (men's) vs Black Diamond Stormline Stretch Rain Shell: which should you buy?

If saving weight is your priority, the Black Diamond Stormline Stretch Rain Shell wins — at 220 g it is 7 g (3%) lighter than the Arc'teryx Alpha SL Jacket (men's) (227 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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