Filson Shirts

Filson Shirts at Behind The Pines Amsterdam

Filson has been making work clothing in Seattle since 1897, and the shirts are the most useful entry point into the brand. The Alaskan Guide Shirt is the one most people know — a heavy cotton flannel, roughly twice the weight of a normal flannel shirt, cut long in the body so it stays tucked when you reach.

Around it sit the lighter Scout and Field shirts for warm weather, and the Jac-Shirts — wool pieces heavy enough to be worn as a jacket. Below is what actually separates them.

The range

Heavy cotton flannels

The Alaskan Guide and Vintage Flannel Work Shirt use flannel at around 6 oz per square yard, against roughly 3 to 4 oz for a normal shirt. The practical effect is that they behave like a light jacket rather than a shirt: warm on their own over a tee, and durable enough that people keep them for a decade.

Lighter shirts

The Scout, Field and twill shirts are standard shirting weights in cotton. Regular shirts, made better than most, with the same long body and proper buttons. These are the ones to wear in summer or under a jacket.

Wool Jac-Shirts

Mackinaw wool, the fabric Filson built its reputation on. Warm when damp, effectively windproof for a knit, and heavy. A Jac-Shirt is outerwear, not a shirt you layer under something — buy it knowing that.

How to choose

Pick by weight, not by name. If you want a shirt to wear under a jacket, buy a lighter cotton one. If you want something that replaces a light jacket, buy the Alaskan Guide or a Jac-Shirt. The mistake people make is buying the heaviest thing in the range and finding it too warm to wear indoors.

On fit: Filson cuts for work, so the body is long and there is room through the chest and shoulder. Most people take their usual size and get a relaxed fit. Size up only if you intend to layer a knit underneath a Jac-Shirt.

What to expect

• Heavy cotton flannel is much warmer than normal flannel — closer to a light jacket than a shirt.
• Long body by design, so it stays tucked when you move. It will look long if you wear it untucked.
• Mackinaw wool pieces are outerwear weight and are warm even when damp.
• Cotton flannel will shrink slightly on a hot wash. Cold wash and hang dry.

Why buy from Behind The Pines

We sell Filson in Amsterdam next to modern technical kit, so we can be straightforward about where a hundred-year-old design still wins and where it does not. Wool and heavy cotton are excellent in cold and damp; they are not the answer to a full day of rain. Orders ship from Amsterdam.

Frequently asked questions

How warm is the Alaskan Guide Shirt?

Warm enough to be a jacket in autumn and spring. The flannel is roughly double the weight of a standard flannel shirt, which is why people wear it over a tee rather than under a coat.

Do Filson shirts run large?

They run relaxed with a long body, cut for working rather than for a close fit. Take your usual size unless you plan to layer heavily underneath.

Is Mackinaw wool itchy?

It is a robust wool, not a merino next-to-skin knit. Most people wear a Jac-Shirt over a t-shirt rather than against bare skin.

Will they shrink?

Cotton flannel shrinks slightly with heat. Cold machine wash and hang dry and it stays put. Wool pieces should be washed as little as possible — air them instead.

Are they waterproof?

No. Wool sheds light rain and stays warm when damp, and cotton does neither. For real rain you need a shell over the top.

Shop Filson Shirts at Behind The Pines Amsterdam

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