Wildfox Couture Track Knox Pants in Gray. - size XS (also in S) Wildfox Couture Track Knox Pants in Gray. - size XS (also in S) Cotton blend. Hand wash cold. Fleece fabric. Elasticized waist. Elasticized leg openings. Made in USA. WILD-WP173. WSF125000. Live your best life in Wildfox Couture. Based in sunny California, the brand has embodied the casual and effortless style of L.A. since launching in 2008. From their signature soft sweatshirts and sweatpants, novelty graphics to their edgy knits, Wildfox is the ultimate line for the stylish set.