G bedsore DRI-TEC® TECHNOLOGY BALANCE SERIES PERFORMANCE® PILLOWS Our best-selling Balance series now features a zip-off washable cover for easy care and cleaning. Powered by Dri-Tec® and Air-X® technologies, our best-selling Balance series is available in a series of 4 Pillow ID sizes for personalized fit. Features: * Dri-Tec® moisture sicking fabric surface helps you sleep dry and comfortable throughout the night. Your body needs to drop 2 degrees at night for proper rejuvenation and recovery.