Pearl Izumi F11 Men's Fly Thermal Top Fall/Winter 2013 Our Fly Thermal Top is a midweight layer that features a MineraleTM Thermal Fleece which dries 50-Percent faster than regular performance polyesters while resisting odor Gear designed and constructed to fit perfectly to the body in motion. The perfect balance of anatomic fit, performance engineered materials and the personal interface between athlete and gear. Our 4 core fabric technologies (Transfer, Barrier, Thermal and Softshell ) create a system that works to help you maintain the perfect temperature for the weather conditions and activity range day in and day out Pearl Izumi product is built to last the lifetime of the garment, and this is how long we will stand behind it. Product purchased from an authorized dealer or retailer is fully warranted to the original owner against defects in materials and workmanship