The most versatile piece of insulation we make, our Nano Puff is weather-resistant enough to wear as an insulated shell in a wet snowstorm, trim enough to pull on for chilly rock pitches (and still see your footholds), and warm enough for light belay parka duty on quick alpine dashes. The wind-blocking, moisture-shedding DWR (durable water repellent) finished, 100% recycled polyester shell also glides effortlessly, whether worn as an outer or midlayer. Low-bulk, hydrophobic, highly compressible PrimaLoft® One (60-g) traps heat with remarkable efficiency, even when wet. Stuffs into its own chest pocket (with carabiner clip-in loop). Elasticized cuffs and hem seal out wind and trap warmth. Recyclable through the Common Threads Recycling Program.

• Versatile 60-gram PrimaLoft® One polyester insulation provides excellent warmth and compressibility
• Ultralight face fabric sheds water with a DWR (durable water repellent) treatment and blocks wind
• Deep center-front zipper allows for easy ventilation
• Stuffs into a self-storage left chest pocket
• Elasticized cuff and hem seal out wind and trap warmth
• Shell and lining: 1-oz 15-denier 100% all-recycled polyester with a DWR (durable water repellent) finish. Insulation: 60-g PrimaLoft® One. Recyclable through the Common Threads Recycling Program
• Made in Vietnam