The Iron Mordant Foxfibre® Double Heavyweight French Terry - Coyote 80 is one of the heaviest knits available today, boasting an impressive 825 GSM (24.3oz per square yard). Its deep, earthy brown hue isn't the result of traditional dyeing but rather a natural blend of Foxfibre® cotton and an iron mordant treatment, creating a rich, organic tone that deepens over time.

Foxfibre® is a naturally colored cotton, organically gown on a single-origin farm in New Mexico, eliminating the need for artificial dyes.

Our Coyote 80 blend showcases the deepest and richest shades in the FoxFibre® range, blending 80% FoxFibre® with 20% organically grown Extra Long Staple cotton. This combination enhances the material's softness and durability.

To further enrich the fabric's tone, the cotton fibers undergo an iron mordant treatment—a traditional process where fibers are soaked in an iron-rich solution that reacts with the cotton's natural pigments. This process intensifies and darkens the fabric's color, transforming it into a deep, earthy brown with rich dimension and character. Over time, Foxfibre® cotton continues to develop and evolve in color, gradually enhancing its depth for a truly one-of-a-kind aging process.

Produced in Wakayama, Japan, using circular knitting machines, this French terry fabric is characterized by its low gauge (10G) knit, and irregular surface texture that's complemented by large, soft loops on the interior, enhancing both comfort and aesthetic appeal. 

Our Sweatpants feature a modern straight leg fit, complete with a drawstring elastic waistband, front slash pockets, and a rear patch pocket. The ribbed side panels offer flexibility and a sleek, stylish appearance. Expertly crafted in Japan ensuring superior quality.