This water-repellent wind shirt is a no-brainer for runs in uncertain mountain weather. It's fast drying, ultralightweight and breathable, with a stretch-knit hood and lower sleeves, and a DWR (durable water repellent) finish that's made without PFCs (perfluorinated chemicals). Packs into its own pocket for easy stowability. Made in a Fair Trade Certified™ factory.

• Stretchy, Ultralightweight 100% Recycled Polyester Shell: Ultralightweight body fabric is made of 100% recycled polyester stretch-woven ripstop with a DWR (durable water repellent) finish that's made without PFCs (perfluorinated chemicals)

• Integrated Stuffsack: Left-chest pocket converts to a stuffsack for easy packing and stowability when needed

• Two-Way Zipper: Deep front-zip with a two-way zipper allows for added venting and easier layering while on the move

• Fitted Hood: Stretch-knit hood fits snug without reducing peripheral vision and provides just the right amount of warmth and protection for early-morning starts

• Lightweight Double-Knit Lower Sleeves: Lower sleeves are made of lightweight stretch-knit fabric and can be easily pushed up the forearms for added venting and comfort

• Longer Sleeves: Longer sleeves for added protection on colder days