For light and fast ascents and descents, opt for the Patagonia Men's Airshed Pro Pullover. 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).

• Lightweight 100% recycled polyester ripstop shell has a DWR (durable water repellent) finish
• Deep front-zip with a two-way zipper allows for added venting and easier layering while on the move
• Hood fits snug without reducing peripheral vision and provides just the right amount of warmth
• DWR finish is made without PFCs (perfluorinated chemicals)
• Lightweight Double-Knit Lower sleeves can be pushed up on forearms for added venting and comfort
• Longer sleeves for added protection on colder days
• Fair Trade Certified sewn, which means the people who made it earned a premium for their labor
• Packs into its own pocket for easy stowability
• Manufacturer limited lifetime warranty against defects in materials and workmanship