Luxurious Thermoroubaix® fabric with PFC Free DWR M™ treatment provides insulation comfort & water repellency Fast wicking to draw away sweat Snug fitting for wearing under helmet, luxurious Thermoroubaix® fabric with PFC Free DWR M™ treatment provides insulation comfort & water repellency, Fast wicking to draw away sweat, Snug fitting for wearing under helmet,