HydrX Pro 10,000mm/8,000g/m². Shell - durable, sublimated 450d polyester shell with HydrX Pro laminate. Lining - mesh/fleece lining system. F.A.S.T. - 260g combined F.A.S.T. 3.0/FXR Thermal Flex insulation value, F.A.S.T. is perforated at vent areas. FXR Dry Vent system - snowproof and moisture resistant chest and side body vent system. Heavy duty YKK #8 Vislon front zipper. YKK zippers throughout. Adjustable windskirt. Cold stop front placket with hook and loop/snap closure system. Shock-cord adjustable collar and hem. Removable/adjustable hood. Adjustable cuffs with lycra inner cuff extensions. 360° 3M Scotchlite reflective