![](https://www.procean.nl/image/cache/catalog/undersuits/polar/Men_undersuit_sweater_03%20-500x500.jpg)
![](https://images.newscientist.com/wp-content/uploads/2023/12/21114605/SEI_184828545.jpg?crop=4:3,smart&width=1200&height=900&upscale=true)
Sweater that mimics polar bear fur may keep you warm in extreme
![](https://www.patagonia.com/dw/image/v2/BDJB_PRD/on/demandware.static/-/Sites-patagonia-master/default/dw041b4bd7/images/hi-res/25618_MLKE.jpg?sw=256&sh=256&sfrm=png&q=95&bgcolor=f5f5f5)
Patagonia Women's Better Sweater® 1/4-Zip Fleece
The PolarForce Sweatshirt isn’t just for keeping you warm; it is designed to keep you productive and your performance high. The new Performance-Flex
![](https://d3d71ba2asa5oz.cloudfront.net/12028843/images/9%20b075fcfq1d%20polarforce%20pullover-05.png)
RefrigiWear Men's PolarForce Sweatshirt Insulated Hoodie with Performance-Flex
![](https://www.sublub.nl/resize/padi_8770010701274_18782510744718.png/padi_8770010701274_18782510744718.png)
Procean Undersuit Lady Polar Flex Sweater 400 3Xl bij sublub
![](https://www.procean.nl/image/cache/catalog/undersuits/polar/Men_undersuit_sweater_04-500x500.jpg)
Polar flex sweater
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2024/01/010324_jc_polar_bear_sweater_feat.jpg)
A fiber inspired by polar bears traps heat as well as down feathers do
![](https://www.rei.com/media/d62726e9-272f-4aa6-951a-9f4e33db7ced.jpg?size=576x768)
Cotopaxi Amado Fleece Pullover - Women's
![](https://i.ytimg.com/vi/1V9RLtSibs8/hqdefault.jpg)
PolarForce® Sweatshirt (8440)
![](https://www.flatspot.com/cdn/shop/files/PolarZigZagKnitSweatshirt-Black-DarkTeal--1.jpg?crop=center&format=pjpg&height=1050&v=1702049063&width=900)
Yardsale Chenille Ripple Knitted Crewneck Sweatshirt - Navy / Blue
![](https://www.backcountry.com/images/items/1200/CTX/CTXB047/WHEAMB_D4.jpg)
Cotopaxi Amado Fleece Pullover - Women's - Clothing
![](https://cdn.shopify.com/s/files/1/0196/5339/4494/files/Untitled_design.png?v=1677451089)
SCR Sportswear] Men's Sportswear and Athletic Wear
Essentials Men's Polar Fleece Hoodie
![](https://www.sublub.nl/resize/Untitled-7_9395010727583_18782510732134.jpg/Untitled-7_9395010727583_18782510732134.jpg)
Procean Undersuit Polar Flex Sweater 230 Mtm bij sublub
Polar Bear Mock Neck Sweater - … curated on LTK
![](https://i.etsystatic.com/7814836/r/il/6c6e58/1818524331/il_570xN.1818524331_ko1u.jpg)
![](https://www.travelandleisure.com/thmb/sNjdc8nXpa57BgzWBpmeirLva3c=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/90-degree-polarflex-lux-high-waist-fleece-6b6f3a666a364b338886cc92f55185d4.jpg)