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Arc'teryx Cerium SL Down Jacket vs Hikerkind Ultralight Alpha Midlayer

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

Hikerkind Ultralight Alpha Midlayer is the lighter option — 96 g lighter than the Arc'teryx Cerium SL Down Jacket (41% less weight). If grams matter to you, that is the one to beat.
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Spec Arc'teryx Cerium SL Down Jacket Hikerkind Ultralight Alpha Midlayer
Weight 235 g · 0.235 kg · 0.52 lb 139 g · 0.139 kg · 0.31 lb
Brand Arc'teryx Hikerkind
Category Clothing - Mid Layer Clothing - Mid Layer
Arc'teryx Cerium SL Down Jacket
235 g

Ultralight down jacket at 8.3 ounces with exceptional packability.

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Hikerkind Ultralight Alpha Midlayer
139 g

Polartec Alpha Direct 90 fleece with crossbody paneling. Launched June 2026. Women-specific design for actual hiking patterns.

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Arc'teryx Cerium SL Down Jacket vs Hikerkind Ultralight Alpha Midlayer: which should you buy?

If saving weight is your priority, the Hikerkind Ultralight Alpha Midlayer wins — at 139 g it is 96 g (41%) lighter than the Arc'teryx Cerium SL Down Jacket (235 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