ACMT™ 20,000mm/8,000g/m² waterproofing Durable Omni-Stretch nylon shell with HydrX Pro laminate 90g F.A.S.T. insulation value in outer shell body (perforated at vent areas) ACMT seam-sealed lining system with integrated venting FXR Dry Vent system - snowproof and moisture resistant chest and side body vent system FXR Thermal Dry removable active liner with 150g Thermal Flex fill YKK® zipper at front and hand pockets HD #8 waterproof chest zipper and side body vents Adjustable windskirt with pant attachment system Reflective screens at front and back Cold stop front placket with hook and loop/snap closure system Shock-cord adjustable collar and bottom hem Removable/adjustable hood Adjustable cuffs with lycra inner cuff extensions