The FS260-Pro Thermo Knee Warmers are designed to keep you warm and dry, with as little fuss as possible. Features Thermoroubaix® - a luxurious, high stretch thermal fabric that provides comfortable insulation and features the PFC Free DWR M™ treatment for excellent and eco friendly water repellencey. FS260-Pro Thermo Knee Warmer Features  Luxurious Thermoroubaix® fabric with PFC Free DWR M™ treatment provides insulation, comfort and water repellency Double sided silicone gripper holds warmers and shorts in place Reflective trim FS260-Pro Thermo Knee Warmer Materials  Nylon 55% / Polyester 28% / Elastane 17%