Perfection. This Retro X jacket is another favorite over here. Made with 100% polyester (50% recycled) sherpa fleece with a bonded windproof membrane to keep your core warm in cool and windy conditions. Wind-blocking, heat-trapping fleece, made with polyester bonded sherpa fleece (85% recycled); lined with polyester (50% recycled) warp-knit mesh with a wicking finish, a windproof barrier and HeiQ® Fresh durable odor control. Fair Trade Certified™ sewn.