How to make yourself impervious to winter's bone-chilling gales? Well, you could stay inside. But for the non-couch-potato types, our warmest fleece provides high-loft 7.4-oz R2® (Polartec® Thermal Pro® polyester that's 40% recycled) on the inside and a velour fleece face (13.5-oz Polartec Windbloc® polyester), with a stretchy windproof laminate sandwiched between. It keeps you mobile and toasty, and excels alone or under a shell. The lack of shoulder seams allows pack-wearing comfort, and the one chest and two high-placed handwarmer pockets (above harness-line) close with invisible zippers. Drawcord hem. Recyclable through the Common Threads Recycling Program.