Patagonia Nano-Air Ultralight Full-Zip Hoody - men's lightweight insulated jacket

The Patagonia Nano-Air Ultralight Full-Zip Hoody is an extremely lightweight men's insulation jacket designed for intense movement in colder conditions. Its highly breathable FullRange™ synthetic insulation provides moderate warmth exactly where you need it most, and its construction is designed to effectively dissipate excess heat during ascents, climbing, and other high-output activities.

• Lightweight FullRange™ insulation: 20 g of synthetic insulation is distributed across the hood, shoulders, upper sleeves, chest, and back, providing warmth without the bulk of a heavy insulating layer.

• Excellent breathability: The breathable outer fabric and non-insulated underarm areas help dissipate heat during intense movement.

• Tailored for climbing and fast-paced movement: The slim technical fit, articulated construction, and stretch materials allow for freedom of movement under a backpack or climbing harness.

• Lightweight hood: The stretch hood is designed to be worn with or without a helmet and can be easily adjusted even when the jacket is zipped up.

• Low pack volume: The jacket packs into its own chest pocket, which also features a carabiner clip-in loop.

The jacket is primarily intended for intense activities in cold and variable weather where a balance between warmth and breathability is essential. It is not a classic warm insulation jacket for stationary use, nor is it a waterproof shell. The water-repellent finish helps with light moisture, but you will need an appropriate outer waterproof layer for prolonged rain or wet snow.

Fit and Sizing

Slim fit, designed for technical use and for wearing under a climbing harness and backpack. When choosing a size, use the Patagonia size guide and keep in mind that the jacket is intended to be worn as a lightweight insulating mid-layer.