OCCLF650 / LF650 LINER 100% SUPER HEAVY WEIGHT Super Heavyweight Fleece Liner For soft comfort and excellent warming, this charcoal gray, single layer liner is made of 100% super heavyweight polyester fleece with a long neck design. Liner features warming pack pockets, elastic gap eliminators, and a reflective strip on the back. Fleece and fasteners are flame resistant, binding is flame retardant until washed.