Patagonia Nano Puff Men's Jacket Size:L Control Zone Ventilation AL216 40 IN Control Zone Ventilation the Reliance 82 C can still explore some un groomed The midlayer you wear for a day on the mountain that compresses into it’s own pocket for packability when you’re out on the trail the Patagonia Nano Puff Men's Jacket uses incredibly lightweight and highly compressible 60 g PrimaLoft® Gold Insulation Eco paired with a ripstop shell with a PFC Free DWR coating to repel light rain and wet to create a jacket that wears as well on its own as it does under a shell A regular fit for accommodating a baselayer and light fleece and a tailored fit for a low bulk silhouette under a shell this is a versatile insulator with the heat trapping filament insulation that will keep you warm without weighing you down