Warmth up front, breathability in back: the new Nano Air Light Hybrid.In 2014, Patagonia introduced the Nano-Air, a versatile insulator with unparalleled stretch and breathability that won Outside Magazine's coveted "Gear of the Year" award. This season, Patagonia introduces the Nano Air Light Hybrid. Working hard in the cold can bring on the dreaded freeze-thaw cycle. The new Nano Air Light Hybrid collection keeps you at optimum operating temperature. Up front, light, warm, stretchy and breathable FullRange insulation is wrapped in a light yet durable shell to stave off wind and weather. Everywhere else, stretchy, airy waffle knit speeds away moisture and dissipates heat. Warmth up front, breathability in back. For cooler temps, the Nano Air Jacket and Hoody are still leaders in active, stretch insulation.