Patagonia M's Nano-Air Ultralight P/O

Versatile, the innovative FullRange insulation provides just the right quantity of warmth on cool days. The strategically placed underarm activities ensure that excess heat is efficiently dissipated.

With its ergonomic cut and slim fit, the Nano-Air Ultralight sits comfortably under climbing harnesses and backpacks. A two-way zipper allows for flexible ventilation, while a generous chest pocket serves as a practical stuff sack.

The Patagonia M's Nano-Air Ultralight P/O not only emphasizes technical comfort, but also supports fair working conditions.