A smart, insulated flannel shirt that will soon become your everyday essential. The Sinclair Insulated Flannel has all the trappings of a regular ol’ flannel button-up, but it has a secret weapon you can barely notice from the outside: It’s stuffed with 40 grams of Spaceloft synthetic down insulation for added warmth.
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://shop.unknownindustries.com/cdn/shop/products/phone-4425_1024x1024.jpg?v=1637966293)
SF Flannel – UNKNOWN Industries
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://images-na.ssl-images-amazon.com/images/I/91q0UeXxv-L._SLDPMOBCAROUSELAUTOCROP288221_MCnd_AC_SR462,693_.jpg)
Flylow Men's Sinclair Insulated Flannel - Bear - M : Clothing, Shoes & Jewelry
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://flylowgear.com/cdn/shop/files/DSC04408_1_350x.jpg?v=1694108250)
Men's Ski Jackets, Pants & Apparel
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://i.vimeocdn.com/video/1708961092-781750e0e0f7d4979de526e8d733524b6103d24027314cab9efeb47506829ec8-d_640?f=webp)
Sinclair Insulated Flannel - Men's Flannel Shirts
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://i5.walmartimages.com/asr/4850b05e-244e-4b69-9008-1a0172685cfa.c7450d8d94898958162b46fdc0cf49c0.jpeg)
Flylow Sinclair Insulated Flannel - Men's
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://m.media-amazon.com/images/I/41AI78x3vVL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Flylow Men's Sinclair Insulated Flannel - Bear - M : Clothing, Shoes & Jewelry
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://www.backcountry.com/images/items/1200/BCC/BCCZ2MN/PIK.jpg)
Backcountry Corduroy High Pile Fleece Lined Shirt Jacket - Men's - Clothing
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://www.backcountry.com/images/items/1200/FLG/FLGZ09B/ARABLAPLA_D2.jpg)
Flylow Sinclair Insulated Flannel - Men's - Clothing
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://images-na.ssl-images-amazon.com/images/I/91ZHF67DfbL._SLDPMOBCAROUSELAUTOCROP288221_MCnd_AC_SR462,693_.jpg)
Flylow Men's Sinclair Insulated Flannel - Bear - M : Clothing, Shoes & Jewelry
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://cdn.shopify.com/s/files/1/1001/9644/collections/unnamed.jpg?v=1599583238)
Men's Ski Jackets, Pants & Apparel
A smart, insulated flannel shirt that will soon become your everyday essential.
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://flylowgear.com/cdn/shop/files/F23_SinclairInsulatedFlannel_RiverNight_02093_grande.jpg?v=1692054229)
Sinclair Insulated Flannel
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://i.vimeocdn.com/video/1219223240-b0c58d77ee960dfdbd08532feb4c2cf28e5b4917ba8e69dda29fda3881dcb2a5-d_640)
Flylow Sinclair Insulated Flannel
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://images-na.ssl-images-amazon.com/images/I/A1NbakAnLmL._SLDPMOBCAROUSELAUTOCROP288221_MCnd_AC_SR462,693_.jpg)
Flylow Men's Sinclair Insulated Flannel - Bear - M : Clothing, Shoes & Jewelry
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://shop.unknownindustries.com/cdn/shop/products/phone-4412_1024x1024.jpg?v=1637966278)
SF Flannel – UNKNOWN Industries
A smart, insulated flannel shirt that will soon become your everyday essential. The Sinclair Insulated Flannel has all the trappings of a regular ol’ flannel button-up, but it has a secret weapon you can barely notice from the outside: It’s stuffed with 40 grams of Spaceloft synthetic down insulation for added warmth.
![Flylow Sinclair Insulated Flannel - Men's Copper/Redwood, M](https://dks.scene7.com/is/image/GolfGalaxy/22XTTMMSNCLRNSLTDAPO_Arame_Black?qlt=70&wid=600&fmt=pjpeg)
Flylow Men's Sinclair Insulated Flannel