For early morning departures from the refuge, headlamp climbing, or climbing sessions under the snowflakes, the men's Nano Puff Vest from Patagonia is the ultimate weapon. Ideal or even essential as an outer or mid-layer in cold weather! With its high-performance PrimaLoft® Gold 60 g/m² insulation, the Nano Puff is ultra-compressible, very lightweight, and incredibly warm. Made from 100% recycled polyester ripstop material treated with a durable water repellent (DWR) finish, this vest perfectly resists wind and moisture. The Nano Puff Vest features a preformed cut and a soft internal storm flap that allows sweat to escape, as well as a zipper garage that provides more comfort at the chin. We also appreciate the drawcord hem, the two zippered handwarmer pockets, and the practical internal chest pocket (with carabiner loop) that doubles as a stuff sack for the vest. For hiking, climbing, or skiing, the Nano Puff Vest is a staple for adventurers! Outer material and lining: 100% recycled polyester, 47 g/m², 22 denier, with durable water repellent (DWR) finish Lightweight, compressible, robust, and water-repellent material Synthetic insulation with the best thermal efficiency on the market: PrimaLoft® Gold 60 g/m², 55% recycled Retains 96% of its warmth, even when wet Brick quilting pattern with horizontal quilted side panels to stabilize the insulation Sturdy thread seams ensuring excellent abrasion resistance Front zipper with internal storm flap that wicks away sweat Zipper garage for more comfort at the chin Two zippered handwarmer pockets with neatly finished zipper garages Internal zippered chest pocket that doubles as a stuff sack for the vest, with reinforced carabiner loop Rounded back hem and drawcord hem to retain warmth Insulation: PrimaLoft® Gold 100% polyester, 60 g/m² Weight: 226 g Primaloft®: PrimaLoft is a synthetic insulating material characterized by its lightness, high breathability, and softness. PrimaLoft has significant heat retention properties and, unlike down, resists water. This fabric will keep you warm and dry during your sporting activities, even the most intense ones. PrimaLoft® Gold offers the best balance of warmth, water resistance, and compressibility in the PrimaLoft range. Patagonia Nano Puff Vest - Synthetic vest - Men's | Hardloop