Arc'teryx Beta SL Jacket vs Black Diamond Fineline Stretch Shell
Weight and specs compared for 2026 — and which one to choose.
Versatile 3-layer GORE-TEX rain jacket for hiking and alpine use. Minimalist design with two hand pockets and a helmet-compatible StormHood for full protection.
4-way stretch waterproof shell at 11.3 oz (320g) for men, featuring stretchy fabric for climbing and technical movement.
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 Beta SL Jacket vs Black Diamond Fineline Stretch Shell: which should you buy?
If saving weight is your priority, the Black Diamond Fineline Stretch Shell wins — at 320 g it is 20 g (6%) lighter than the Arc'teryx Beta SL Jacket (340 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.