Simplicity exemplified in an arm warmer. Designed to keep you warm & the worst of the water off with as little fuss as possible. Thermoroubaix with DWR M™ Thermoroubaix is a luxurious high stretch thermal fabric that provides comfortable insulation & features the PFC Free DWR M™ treatment for excellent eco friendly water repellencey. Luxurious Thermoroubaix fabric with PFC Free DWR M™ treatment provides insulation comfort & water repellency Double sided silicone gripper holds warmers & sleeves in place Reflective trim Construction Nylon 55% Polyester 28% Elastane 17% Fabrics & Technologies