Nano-Air® Light • 40g FullRange® Insulation
Always On.
Built for nonstop, cold-weather pursuits, the Patagonia Nano-Air® Light is a breathable, adaptable insulation layer designed to stay comfortable when you're moving hard and when you pause. With responsive 40g FullRange® insulation and a stretchy, quick-drying fabric, it’s the versatile leave-it-on layer for high-output days in the mountains.
Breathable warmth for steady output
Nano-Air® Light is ideal for cool conditions and steady-output mountain use, offering the balance of warmth, stretch and breathability that makes it a go-to layer for climbing, hiking and other fast-moving outdoor pursuits.