A breathable merino wool technical top designed to naturally regulate your temperature, control odor and keep you comfortable when you&';re working hard in the widest range of conditions. Made with Responsible Wool Standard (RWS) wool certified by Control Union (TE-00052557). Patagonia blends the RWS wool with 35% recycled polyester for versatility and performance. The purchase of RWS-certified products demonstrates demand for better animal welfare practices and responsible land management in the wool supply chain. Made in a Fair Trade Certified(TM) factory. Specs Performance Fabric Soft, comfortable, next-to-skin blended fabric wicks moisture, dries fast, naturally regulates your temperature and resists odor Built for Mobility Set-in sleeves for enhanced movement and fit Vents and Drop-Tail Hem Side vents with slight drop tail RWS-Certified Wool The Responsible Wool Standard verifies wool animal welfare and land management requirements and tracks it from farm to final product Loop for Hanging Back-neck yoke with hanger loop P-6 Logo Woven P-6 logo at left hem Supporting the People Who Made This Product Made in a Fair Trade Certified(TM) factory, which means the people who made this product earned a premium for their labor Country of Origin Made in Sri Lanka. Weight 139 g (4.9 oz) 3.5-oz 65% Responsible Wool Standard (RWS)-certified wool certified by Control Union (TE-00052557)/35% recycled polyester jersey. The RWS verifies wool animal welfare and land management requirements and tracks it from farm to final product Fabric is certified as bluesignA(R) approved Made in a Fair Trade Certified(TM) factory Care Instructions Machine Wash Cold Gentle Cycle, Do Not Bleach, Dry Flat, Do Not Iron