Not surprisingly, the Men’s Nano Puff Jacket delivers an incredibly lightweight and packable design made of a water-resistant and durable ripstop recycled polyester fabric. Like a warm blanket for a shivering shoulder, the Nano Puff is packed with 60g PrimaLoft One insulation that easily compresses into an internal zippered chest pocket. Its versatility can be expressed through layering beneath a waterproof shell when conditions are less than reputable or worn on its own in colder, dryer climates. Its pack-savvy nature makes it a frontrunner in any “MUST HAVE” list that outlines extended trips into the backcountry. Kin to the Nano Puff Pullover, but with a full length zipper, the Patagonia Nano Puff Jacket, complete with a unique quilted pattern to keep insulation in place, and a dual adjust hem-drawcord that further fortifies this bastion of warmth by trapping body heat within, makes a statement for any and all that are serious about comfort and function.