Arc'teryx Alpha SL Jacket (men's) vs Rab Kinetic Alpine 2.0
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.
Check price Full details →Stretch waterproof hardshell using Proflex membrane fabric for a soft, breathable feel with a helmet-compatible hood.
Check price Full details →Arc'teryx Alpha SL Jacket (men's) vs Rab Kinetic Alpine 2.0: which should you buy?
If saving weight is your priority, the Arc'teryx Alpha SL Jacket (men's) wins — at 227 g it is 108 g (32%) lighter than the Rab Kinetic Alpine 2.0 (335 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.