Patagonia Women's Nano-Air Jacket Style#: 84255 Color: Black Size: Medium Product Details (from website): *Light-yet-durable 100% nylon ripstop shell and plain-weave liner offer generous mechanical stretch and exceptional breathability, with a DWR (durable water repellent) finish *Revolutionary 60-g FullRange™ Insulation warms and stretches; combined with the shell and liner, this creates a jacket with generous mechanical stretch and unprecedented air permeability (40 CFM) *Iconic Nano Puff® brick quilting in the side panels, articulated patterning and other quilting details improve shape and durability *Center-front zipper has wicking interior storm flap and zipper garage at chin for next-to-skin comfort *Two handwarmer pockets and a left chest pocket are zippered, welted and low-bulk to wear comfortably with a harness or pack *Stretch binding at the cuffs and a dual-adjustable drawcord hem seal in warmth