Excellent Fabric Our cordless shade is made of environmentally friendly three-layer fabric. 100% blackout, 100% environmental health and 100% anti UV. Same jacquard fabric on both sides. The middle thick layer can make room dark and help block out sun and heat. It also helps with temperature control. Upgraded Cordless Design The cord-free design provides a clean, tangle-free look to the window and creates a safer environment for children and pets; it will stay at whatever position you stop; the bottom aluminum rail is weighted and rigid so it hangs flat and prevents from wind blowing.