Auraline True Composite windows and patio doors blend the beauty and energy efficiency of wood with strength and durability. A new alternative to vinyl and wood, Jeld-Wen's composite products blend wood fiber with synthetic polymers and a co-extruded color to create a highly durable and energy-efficient material. Auraline True Composite offers clean, crisp, slim sight lines and architecturally correct design with up to 28 percent more visible glass than competitors, according to company officials.