Arc'teryx Atom Hoody vs Montbell U.L. Thermawrap Jacket
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.
Check price Full details →Ultralight synthetic Exceloft insulated jacket with 15D Ballistic Airlight nylon shell, highly packable for cool weather.
Check price Full details →Arc'teryx Atom Hoody vs Montbell U.L. Thermawrap Jacket: which should you buy?
If saving weight is your priority, the Montbell U.L. Thermawrap Jacket wins — at 227 g it is 93 g (29%) 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.