A beautifully designed, wool filled vest, purpose-built for the complicated days of winter, the Wool Aire Vest extends a bit down the back for comfortable coverage and bears a flattering shape and soft hand-warmer pockets. Australian wool fill in rip resistant lining makes a lightweight vest that packs down for life on the go. Back length from top of shoulder=26 1/4'' (size M). Shell: 100% Recycled Nylon. Lining: 88% Recycled Rip Stop Poly, 12% Regular Poly Double RipStop. Fill: Swiss Insulated lightweight wool insulation 90% Australian Merino Wool, 10% Polyester.