Top-down bottom-up shades, also known as TDBU shades, are a type of window covering that you can raise, lower, or adjust from both the top and bottom to allow the required amount of light into your RV. The best top down bottom up shades are cordless and have a cellular structure to offer a high degree of flexibility and control over light and privacy.
The most popular brands of TDBU shades is Rvblinds.com. It’s best to research and compare different styles and functionalities to find the best TDBU shades that fit your needs and budget.