That’s an anorak—a breathable, windproof shell worn over insulating layers like wool or fur. These are great for cold climates as they block wind and snow but allow moisture to escape, preventing ice buildup on the layers underneath. If not dried daily, moisture can freeze in insulation, rendering it useless.
Historically, they’ve been made with Ventile, a finely woven cotton that beads water and sheds snow. Modern versions like the Ravno Expedition Anorak use Ventile and sell for about $765 USD. Another option is the Fjällräven No. 8 Anorak, made with G-1000 fabric, though it’s better suited for subarctic conditions than deep arctic use.
@Drew
The Ravno Expedition Anorak is now $831 and sold out. Figures!
Fielder said:
@Drew
The Ravno Expedition Anorak is now $831 and sold out. Figures!
Rats! That’s unfortunate. 
@Drew
What in the world is this super detailed reply? Feels like AI-generated content.
Neely said:
@Drew
What in the world is this super detailed reply? Feels like AI-generated content.
Just trying to provide a thorough answer to OP’s question based on the photo, context, and the era the coat seems to come from. What’s your excuse for commenting? 
@Drew
I’ve had a Fjällräven Skogsö jacket since 2019. It’s incredibly durable—still looks like new despite heavy use. The zippers work perfectly, and even a small tear from my dog hasn’t worsened. I’d recommend them if you want something long-lasting.
@Grey
Thanks for the review! Not waxing it for water/windproofing might be a good trade-off for better breathability during active use.
@Drew
I still love my 1994 purple nylon Old Navy anorak with a kangaroo pocket!
@Drew
Here’s a deep dive into Ventile fabric: Read here. It’s a decent read, but take it with a grain of salt.
Aza said:
@Drew
Here’s a deep dive into Ventile fabric: Read here. It’s a decent read, but take it with a grain of salt.
Interesting article, but a bit over-the-top in its criticisms. Ventile has its trade-offs, but for cold and dry climates, it excels. It’s always about choosing the right tool for the job.
Probably just a white cotton anorak.
It’s an anorak. You can make your own or buy one from places like Lure of the North Outfitters: Check them out here.
Duluth Pack makes a canvas anorak. I tried one in their store—it’s $435 and made to order. I personally get too warm in an anorak, though.
If you’re looking for something more modern and affordable:
I use the Särmä Windproof Smock in black. It’s lightweight and works great for cycling in the cold.