The best warmth for weight of any jacket weve ever built, the Micro Puff Hoody delivers ultra lightweight, water-resistant, down-like warmth with PlumaFill synthetic insulationa revolutionary featherlight down alternative. Ultralight nylon ripstop Pertex Quantum shell is water-resistant, windproof and treated with a DWR (durable water repellent finish. Revolutionary PlumaFill insulation replicates the structure of down in a continuous synthetic insulation material, offering the warmth and packability of down but with the warm-when-wet performance of synthetic insulation. Innovative quilting construction complements the insulation by stabilizing and maximizing the loft of the PlumaFill strands with minimal stitching. Center-front zipper has storm flap and zipper garage at chin for next-to-skin comfort. Two welted zippered handwarmer pockets and two internal drop-in pockets; left pocket doubles as a stuffsack with a reinforced carabiner clip-in loop. Under-the-helmet hood construction is light and simple. Elasticized cuffs and hem seal in warmth. Regular fit.