Our sandstone vest is perfect for layering and keeping you warm. It is made from 100% cotton sandstone duck and has nylon lining quilted to arctic-weight-polyester insulation. Additional, features include a brass center-front zipper with inside storm flap, a drop tail, and triple-stitched main seams. Incase you need room for storage, there are two large lower-front pockets and an inside pocket with hook-and-loop closure.