Designed for movement and high exertion, Capilene Cool Lightweight is Patagonia's lightest, fastest-drying, best wicking technical fabric for hot days. It moves moisture quickly and breathes exceptionally well to keep you cool and dry across the full range of active, high-output agendas. Made of 100% recycled polyester double knit (heathers have 37% recycled content; stripes have 83% recycled content), Capilene Cool Lightweight has a smooth outer face that glides easily in any layering system; it feels weightless, airy and free on the skin and with Polygiene permanent odor control you won’t stink up the celebratory beerfest at the end of your long run. Details include a classic go-anywhere crewneck design, set-in sleeves for chafe-free comfort and total shoulder mobility, a slight drop-tail hem for a stay-put fit under a harness or hip belt and a clean, snag-free woven label on the front-hem. It’s Fair Trade Certified sewn, which means the people who made it earned a premium for their labor.