V33-C Carhartt Men’s Mock-Neck Vest – Sherpa Lined – Discontinued Pricing The Sandstone Mock-Neck Vest is perfect for layering. Made of 12 ounce, 100% cotton sandstone duck, it features a sherpa lining, two large, sherpa-lined front pockets, two inside pockets and map pocket with zipper closure on the left chest. A drop tail adds coverage. (Formerly known as Sandstone Mock-Neck Vest – Sherpa Lined)