Is the Isthmus Insulated Parka warm enough for winter?

It suits fall, mild winter and layering. For freezing or windy days, wear it under a shell or choose a heavier down parka.

No. The nylon shell is water-repellent, so it handles drizzle and snow but not steady rain. A rain shell over it is the better call in a downpour.

Does it use down or synthetic insulation?

Synthetic. That means it keeps some warmth if it gets damp, but it is bulkier than down for the same warmth.

XS through XXL, in black. Check the size chart, since Patagonia outerwear tends to run roomy for layering.

It is the best new price across the two stores listing it as of November 7, 2026. Watch for end-of-season markdowns if you can wait.

At Backcountry, for $299.00, as of our latest check.

2 stores we checked sell it, including Backcountry, Patagonia.

$299.00at BackcountryObserved at 8:33 AM

Compared across 2 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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