Why This Mackinaw Jac-Shirt

The Filson Mackinaw Wool Jac-Shirt is the ultimate "do-it-all" layer, serving as a heavy shirt indoors or a weather-resistant jacket outdoors. This rare **Made in USA** edition is crafted from Filson’s legendary **24-oz. Mackinaw Wool**—the same heavyweight, water-repellent fabric used in their iconic Cruiser coats. It offers significantly more warmth and wind resistance than the lighter "Seattle Wool" versions.

The **Red and Black Ombre** colorway is a stunning variation of the classic plaid, featuring a shadowed gradient that looks exceptional in the field or the city. With its **snap-front closure** and roomy cut, it is built to be worn over a flannel or sweater, making it an essential piece of cold-weather gear.

Key Features

• 24-oz. Mackinaw Wool: The gold standard for natural insulation; stays warm even when wet and is highly durable.
• Made in USA: Proudly manufactured in America, ensuring top-tier construction and collectibility.
• Snap Closure: Easy-to-use heavy-duty snaps allow for operation even while wearing gloves.
• Weather Resistant: The tight wool weave naturally repels rain, snow, and wind.
• Functional Pockets: Two flap chest pockets keep essentials secure; perfect for a phone or notebook.

Sizing & Measurements

Filson Jac-Shirts are cut with a "Relaxed Fit" to allow for heavy layering underneath. A Size XS typically fits like a standard Small/Medium.

Materials & Care

• Material: 100% Virgin Mackinaw Wool (24-oz).
• Care: Dry Clean Only. (Wool naturally resists odors, so frequent cleaning is rarely needed).

Overview

The Filson Mackinaw Wool Jac-Shirt in Red/Black Ombre is a heritage investment piece. Combining the rugged warmth of 24-oz wool with the versatility of a shirt-jacket, this **Size XS** garment is a rare, USA-made classic built to last a lifetime.