Arc'teryx Atom Hoody vs Montane Alpine 850 Lite
Weight and specs compared for 2026 — and which one to choose.
Versatile synthetic insulated hoody with Coreloft Compact insulation. Excellent moisture resistance and packability; ideal as standalone or layering piece.
Full details →Ultralight down jacket with 140g of 850+ fill power HyperDRY down. Water-resistant insulation for alpine expeditions requiring minimal weight penalty.
Full details →HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.
Arc'teryx Atom Hoody vs Montane Alpine 850 Lite: which should you buy?
If saving weight is your priority, the Montane Alpine 850 Lite wins — at 285 g it is 35 g (11%) lighter than the Arc'teryx Atom Hoody (320 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 - mid layer page, or browse the full gear weight database.