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Arc'teryx Atom Hoody vs Marmot Featherless Hoody

Weight and specs compared for 2026 — and which one to choose.

Arc'teryx Atom Hoody is the lighter option — 50 g lighter than the Marmot Featherless Hoody (14% less weight). If grams matter to you, that is the one to beat.
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Spec Arc'teryx Atom Hoody Marmot Featherless Hoody
Weight 320 g · 0.320 kg · 0.71 lb 370 g · 0.370 kg · 0.82 lb
Brand Arc'teryx Marmot
Category Clothing - Mid Layer Clothing - Mid Layer
Arc'teryx Atom Hoody
320 g

Versatile synthetic insulated hoody with Coreloft Compact insulation. Excellent moisture resistance and packability; ideal as standalone or layering piece.

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Marmot Featherless Hoody
370 g

Synthetic insulated hoody that retains warmth when wet.

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Arc'teryx Atom Hoody vs Marmot Featherless Hoody: which should you buy?

If saving weight is your priority, the Arc'teryx Atom Hoody wins — at 320 g it is 50 g (14%) lighter than the Marmot Featherless Hoody (370 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.

More clothing - mid layer comparisons