A breathable merino technical top, the Patagonia Women's Long Slv Capilene Cool Merino Shirt is designed to naturally regulate your temperature, control odour and keep you comfortable when you’re working hard in the widest range of conditions. Made from a blend of 65% RWS-certified merino wool and 35% recycled polyester.  All of the virgin wool Patagonia sources is certified to the Responsible Wool Standard (RWS) from farm to fibre to help ensure protection both for the animals that supply it and the land they graze.  Fair Trade Certified™ sewn.