Eiseman Flannel

100% Cotton Flannel

Eiseman Flannel
  • 675 small
  • 676 small
  • 677 small

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Free Shipping on all US orders over $200. Most orders ship in about 3 weeks. Rush options available during checkout.


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COVID-19 Updates

Our e-commerce, support, and manufacturing teams are operational. However, please allow an additional 2-4 weeks for manufacturing as we work through our backlog that accrued during mandatory closures. Thank you!

For the latest updates, view our COVID-19 status page.



Spend some time in Colorado and you'll soon hear of (or get invited on) a "hut trip"—which involves, depending on the season, backcountry skiing, snowshoeing or trekking to one of more of the 34 huts connected by 350 miles of suggested routes. Officially, they're the 10th Mountain Division Huts, named for the members of the U.S. Army who trained in Colorado during World War II. This winter, we've got a flannel named for just about every hut—the premium Eisemen is milled in Japan, in classic, saturated blue and red that'll last a lifetime in your closet.

Fabric Specs

Composition 100% Cotton
Weave Flannel
Weight Heavy (140 GSM)
Care: Standard

Customer Reviews

2 Reviews, 5.0 Average

Latest Reviews

Soft, colorful mid-weight flannel. Great to wear on cold, college game day in the fall.

Taylor Z. (Lawrence, KS)

My all-time favourite Ratio shirt. This is a workhorse. Not as soft as Gray Mesa Flannel but I could still live day to day in this shirt. The colour and pattern fit perfectly into any winter wardrobe.

Derek T. (Gatineau, QC)

How it's Made


We’re proud to make this shirt in a facility in North Carolina that’s been making shirts continuously for nearly 60 years with a history of quality and craftsmanship. The factory is a union shop that employs several hundred skilled operators, who earn a living wage. Every shirt made by Ratio includes over sixty operations performed by a dedicated team of made-to-measure specialists.


  • Proudly made in the USA to your measurements and specifications
  • Single-needle tailoring
  • Quarter-inch topstitching on collars and cuffs
  • Two-piece yoke
  • Removable collar stays (when applicable)
  • Heat-activated, self-sealing button thread for exceptional button security
  • Soft, sewn (not fused) interlining for a comfortable and casual appearance