Deadstock Vintage Carhartt Union Made Brown Duck Winter Cap. Grainy dark brown SANFORIZED duck canvas with fold down ear flaps and flannel lining and to help keep you warm and toasty on those cold winter days. United Cap & Hatters Millinery Workers Union label can be seen hiding behind the original size tag. Originally priced at $4.25, likely dates to the 1960's based on the cursive script label. From the vintageworkwear.com collection.