Shop Sun Zero Amherst Velvet 50 x 84 Thermal Blackout Curtain Panel online at Macys.com. Featuring a decadent velvet fabric, Sun Zero Amherst Curtain Panels add luxe appeal to any room of your home. Sun Zero Extreme Blackout™ Thermal Lining is laboratory tested to block out 100% of light, reduce outside noise by up to 40%, and decrease energy lost through your windows by up to 40%. Hang in your entertainment room to eliminate screen glare and reduce distracting outside noise, or in your bedroom for enhanced privacy and a sounder, more uninterrupted sleep.