Medium Weight Jacket - Orange/Yellow 8 oz. poly or poly/cotton twill treated with water repellant, plus added wind barrier of woven poly or nylon. Nylon taffeta or nylon satin lining, 3M G100 Thinsulate insulation, 3M 6187 Reflective for ANSI Class 3. Discontinued items are non-returnable, non-refundable and limited to stock on hand.