Warmth can never be underdone in the winter and the Patagonia R4 Jacket for women has warmth to the brim. Made from the warmest thickest, softest fleece in their R lineup, this fleece jacket sandwiches a windproof laminate between an exterior of 13oz Polartec(R) Windbloc(R) fleece and an interior of R2(R) grid fleece. Full of stretch to keep you mobile and agile, this cozy winter jacket works well as an outer layer or as a mid layer for insulation under a ski shell. The R4 has a sleek and fitted silhouette and uses micro-stitch technology on the zipper seams to reduce bulk. Coziness is improved with microfleece-lined collar, hem and cuffs while the offset shoulder seams let you wear pack straps all day without any seam chafe. Able to help regulate moisture inside with performance oriented breathability, the Patagonia Women's R4 Jacket is a super cozy choice for any winter activity.