Black Diamond Stormline Stretch Rain Shell vs Outdoor Research Helium UL Jacket (men's)
Weight and specs compared for 2026 — and which one to choose.
Packable waterproof shell with stretch for climbing.
Full details →Minimalist rain jacket in 2.75-layer 15D Toray Dermizax fabric. Packs into its own pocket for easy stowing. 5.7 oz.
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Black Diamond Stormline Stretch Rain Shell vs Outdoor Research Helium UL Jacket (men's): which should you buy?
If saving weight is your priority, the Outdoor Research Helium UL Jacket (men's) wins — at 161 g it is 59 g (27%) 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.