Thomas Mason Black Watch

100% Brushed Cotton Twill

Thomas Mason Black Watch
  • 1014 small
  • 1015 small
  • 1016 small

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The Black Watch Tartan dates to early 18th century Scotland and is the official tartan of the Royal Highland Regiment. Black Watch has become a menswear staple, especially in evening wear, and is instantly recognizable for its lush blues and greens. Our version, from the famed Thomas Mason mill, is lightly brushed to give it the feel of flannel, but still with a level of refinement you’d expect from Thomas Mason.

Fabric Specs

Composition 100% Cotton
Weave Twill
Yarn/Thread Count 80's Two-Ply
Weight Medium-Heavy (130 GSM)
Opacity Rating Completely Opaque (5)
Care: Standard

Customer Reviews

10 Reviews, 4.8 Average
Latest Reviews

I've ordered more than 10 shirts from Ratio and this is my favorite fabric! It's soft and comfortable. It doesn't wrinkle easily. It can be dressed up or down. I love it!

Chris B. (Highlands Ranch, CO)

Thomas Mason on Ratio, doesn't get any better. The best.

Michael P. (Cincinnati, OH)

Just an amazing fabric. Kind of like a lighter weight flannel. Rich blues and greens. It's a favorite.

Ratio Customer (Somerville, MA)

Nice colors and fits well.

Kerry B. (Little Rock, AR)

Softest "dress shirt" I have ever owned. Travels amazingly well for how soft the fabric is. Looks like a flannel but way lighter in weight. Can be worn with jeans, dress pants or khakis. My brain has a hard time picturing it under a sport coat or with a tie but I am sure it would still work.

David C. (Lakewood, CO)

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How it's Made

Fabric Mill

Thomas Mason

Founded in 1796 by its namesake during the height of the English Industrial Revolution, Thomas Mason has become synonymous with quality shirting and classic English style. The tradition continues to this day, with the mill generally regarded as one of the finest shirting weavers in the world.


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