The Iron Mordant Foxfibre Double Heavyweight French Terry – Coyote 80 is among the heaviest knits available today, weighing an impressive 825 GSM (24.3 oz per square yard). Its deep, earthy brown hue is not achieved through traditional dyeing methods, but through a natural blend of Foxfibre cotton and an iron mordant treatmentproducing a rich, organic tone that deepens and evolves over time. Foxfibre is a naturally colored cotton, organically grown on a single-origin farm in New Mexico, eliminating the need for artificial dyes.The Coyote 80 blend features the deepest and richest tones in the Foxfibre range, combining 80% Foxfibre with 20% organically grown Extra Long Staple cotton. This composition enhances both the softness and durability of the material.To further enrich the fabrics tone, the cotton fibers undergo a traditional iron mordant treatment, where they are soaked in an iron-rich solution that reacts with the cotton’s natural pigments. This process deepens the color, creating a dimensional, earthy brown with lasting character. Over time, Foxfibre cotton naturally matures in color, offering a one-of-a-kind patina through wear and exposure.

Knitted in Wakayama, Japan, using circular knitting machines, this French terry fabric features a low gauge (10G) construction with an irregular surface texture. The interior is finished with large, soft loops, enhancing both tactile comfort and visual depth.

The Sweatpants are designed with a modern straight-leg fit and feature a drawstring elastic waistband, front slash pockets, and a rear patch pocket. Ribbed side panels provide added flexibility and a clean, athletic silhouette. Each pair is expertly crafted in Japan to ensure exceptional quality.

– Style: Sweatpant
– Fit: Regular fit – Straight Leg – Mid rise
– Color: Coyote 80 Brown
– Material: 100% cotton
– Made of 825gsm(24.3oz) heavyweight French Terry Foxfibre fabric
– One of the heaviest knits ever
– Large soft loops inside
– Drawstring elastic waistband
– Front slash pockets
– Rear patch pocket
– Ribbed side pannels
– Made in Wakayama, Japan

Our model is 192m, 92kg – wears size L