Features of the Smartwool Women's Anchor Line Reversible Sherpa Vest Reversible vest for Dual functionality Classic brushed wool fleece provides breathable warmth and modern style Pockets lined with super plush, soft wool sherpa fleece for additional warmth Droptail hem for added coverage Fabric Details Sherpa Exterior: 66% Wool, 20% Nylon, 14% Polyester Reversible Lining: 100% Nylon