The Flyer loves air time but works just as well when your tires hit the ground. The front is made from insulating post-consumer re cycled fleece with a windproof/highly breathable P.E . F. (performance enhancing film) barrier that extends behind the shoulders and wraps around the kidneys. The back is quick-drying Expedition Weight Fleece Capilene stretch polyester. With large, zippered back pocket. Made in USA.