Outdoor Research Helium UL Jacket vs Rab Phantom Waterproof Jacket
Weight and specs compared for 2026 — and which one to choose.
Minimalist rain jacket with Toray Dermizax 2.75-layer 15D construction, highly breathable and compressible for fast-and-light mountain use.
Check price Full details →Ultralight waterproof hardshell with Pertex Shield fabric, extremely packable with minimalist design. Exceptional protection-to-weight ratio.
Check price Full details →Outdoor Research Helium UL Jacket vs Rab Phantom Waterproof Jacket: which should you buy?
If saving weight is your priority, the Rab Phantom Waterproof Jacket wins — at 116 g it is 46 g (28%) lighter than the Outdoor Research Helium UL Jacket (162 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.