OCCRB405 / RB405 LINER COTTON NAVY BLUE TWILL Cotton Twill Fleece Liner with Fleece Lining Keep the cold out with regular or heavyweight fleece liners. Navy 100% cotton twill shell and binding are flame retardant until washed. Choose from regular length red polyester fleece lining or heavyweight with extra long nape. Both liners feature warming pack pockets lined with DuPont Thermotex microporous material, elastic gap eliminators, and a reflective strip on the back.