New to the active insulation collection, Patagonia 's NANO-AIR LIGHT is a technical sleeveless jacket for men that forms a particularly versatile layer.

Featuring an air-permeable recycled polyester membrane and lining with four-way stretch and a durable, perfluoride-free water-repellent finish , this jacket combines FullRange insulation to keep the chest warm in all lightness.

In addition to convenient zipped pockets, this jacket features a stand-up collar to avoid annoying drafts.