Every Soft Lite sliding patio door is made with the utmost energy efficiency. The KingsRoyal series Soft Lite sliding patio doors are affordable and extreme-weather-tested for efficiency and durability. Soft Lite KingsRoyal offers four interior color options, foam filled frames, dual ball bearing rollers, and a multi-point lock. The slim sashes give you a better view of your yard. You’ll hardly notice the window itself, while still being protected from the elements.