Our Carl Yak Shirt, now in an exclusive natural-dyed version for FW26. Made in partnership with Green Matters Natural Dye Company.

Made from high-grade cotton blended with yak (yes, yak) wool, this fabric makes for some of the most unique shirting we could ask for, and that’s only on the surface.

Yak brings something unexpected to an otherwise familiar fabric. It’s brushed to create an exceptionally soft, fuzzy texture that makes this feel unlike most shirting. Warmth and comfort are a given, and the shirt has a character all its own.

We didn't expect it to look many microns sharper than the average winter shirt. The Italian fisheye Corozo buttons are an attractive addition, which took to the natural dye well. Hidden buttons beneath the collar allow it to wear neatly for any occasion.

The natural dye process that the Green Matters team has mastered is a treat for every piece that passes through the facility. Using only vats of rain water and plant-based, organic material, each piece is hand-dyed with care and attention. One by one, each garment comes out with subtle variations that add depth and intrigue to the fabric.

We loved the final product enough to give it a name. After the guy who named the yak—for science—we call it Carl.

Read more about yak in the Wall Street Journal: The Next Big Style Brag for Men? ‘It’s Not Cashmere. It’s Yak.’