VSciatica, Back & Hip Relief - Our knee pillow fits comfortably between your knees and provides maximum comfort and support to relieve sciatica pain, back pain and pressure on the lower back. Premium Memory Foam:Certified foam to ensure safety and quality. This is a high grade, great quality knee pillow. 25*20*15cm Erconomic, Innovative Design: The knee pillow is soft and supportive, giving you a welcoming feel that stays comfortable in any position while providing liquid-like quality that contours to your body, aligns your spine and improves circulation. Breathable Machine Washable Cover: The longer silkier fibers of the breathable zippered cover increases airflow so youre always sleeping cool and is machine washable for easy cleaning