Patagonia's most versatile baselayer: warm, breathable and with Polygiene® permanent odor control for daily use. Capilene® Midweight Zip-Neck hits the sweet spot between weight, breathability and wicking performance so you can wear this piece alone or under layers to stay dry and comfortable during high-exertion activities in cool-to-cold weather. Constructed with Polartec® Power Grid® fabric, Capilene® Midweight has a smooth face for easy layering and a brushed-back grid that aids in wicking as well as trapping warmth. Solid-colored fabrics have 93% recycled-polyester content, heathers have 63% and both are treated with Polygiene® permanent odor control. Polygiene® permanent odor control means less washing and longer wearing, and because it’s Fair Trade Certified™ sewn, the people who made it earned a premium for their labor.