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