Description of Patagonia R4® Jacket Windproof protection for frigid conditions in a single, stretchy package. Put the “wonderful” back into “winter wonderland” when the wind kicks up and the temps drop down. Our warmest fleece, R4® features a toasty and stretchy fabric package with variegated-fiber R2® on the inside, a windproof laminate in the middle, and full-loft R2 on the outside, making it a champ alone or under a shell. Its lack of shoulder seams allows pack-wearing comfort, and the high-placed handwarmer pockets stay clear of a harness. 100% recyclable through the Common Threads Recycling Program. Features: High-loft fleece on the face for softer outer and increased warmth Windproof laminate sandwiched between outer and inner fabrics Interior fabric is a variegated-fiber R2® for greater warmth, glide over layers and increased compressibility Chinflap with fold-over zipper cover for comfort Full, Supplex® nylon windflap behind zipper; No shoulder seams allow pack-wearing comfort Invisible zippered chest pocket; High-placed invisible-zippered handwarmer pockets for harness compatibility Elasticized cuffs; Drawcord hem; Regular fit A 13-oz (Polartec® Windbloc®) urethane laminate sandwiched between a full-velour, single-sided R2 (Polartec Thermal Pro®) polyester on the face and a single-sided grid R2 on the inside. 100% recyclable through the Common Threads Recycling Program 788 g (27.8 oz) Imported.