Windproof and water resistant, the full zip Patagonia Women's Nano Puff Hooded Insulated Jacket may be the most versatile outerwear slash midlayer in your winter sport wardrobe. Warm, incredibly lightweight, highly compressible 60g PrimaLoft One insulation delivers efficient cozy performance that layers easily beneath your nasty weather shell or when worn alone in milder conditions, thanks to its long lasting Deluge DWR finish. The exterior and lining is made from tough and eco friendly 100% recycled polyester that also feels soft and smooth against your skin. A regular fit give you room to move yet fits well when layering. The fully insulated hood keeps your head comfy when the wind and cold blow in. Zippered hand pockets secure your valuables while you rip it up. You won't believe how much warmth fits into this super lean and light hoodie. Yes, it will fit under a shell without straining the seams, and it will be all the insulation you need when worn as a midlayer.