This Gustin CPO (Chief Petty Officer) is made out of wool from Woolrich Mills in the USA. We wanted to some of the finest materials to introduce this new product and Woolrich wool is at the top of the list. The rich colors in this style combined with the weave make it a real stand out. A heathered charcoal wool comes together with a jet black wool in a classic herringbone pattern. The weave allows the black wool to darken up the overall shade and provide a shadow effect to the grey hue. The color variation in the charcoal wool keeps it lively. At 8oz's this is wool is extra versatile. It layers without feeling bulky, while also being able to stand alone on a cool night. The pattern in this fabric contrasts perfectly with denim.