Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The Cerium is Arc'teryx's lightweight down midlayer, built for climbing and hiking in cold, dry conditions. It pairs 850-fill European grey goose down with a 10-denier nylon ripstop shell and maps synthetic insulation into the shoulders and cuffs where down wets out and compresses. At roughly 10 ounces it packs into its own pocket and layers under a shell, which is why alpinists favor it. Reviewers praise the warmth-to-weight ratio but warn the face fabric is thin and the slim cut runs snug, so it is a specialist layer rather than a stand-alone winter coat.
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Store links may earn us a commission. Some prices via Klarna.
Lowest price we've seen: $380.00 on Nov 10 at Zappos. Tracked across 3 stores since Nov 10.
Owners rate the Cerium highly as a packable midlayer, citing its warmth-to-weight and how small it stuffs. The most common complaints are the delicate shell fabric and the tight, athletic fit.
