Cushion Lab memory foam knee pillow with removable cover. ✔ HIP ALIGNMENT, PROMOTE CIRCULATION: Our leg pillow keeps your legs, hip, and spine in ideal alignment while sleeping, and promote blood circulation ✔ SCIATICA, BACK, HIP PAIN RELIEF: Recommended by physical therapists & chiropractors, ergonomic orthopedic leg pillow fits naturally between your legs, providing comfortable knee support & lower body relief to sciatica & lower back pain ✔ TWO TONE BREATHABLE EASY CLEAN COVER: Hypoallergenic breathable two-tone white/grey soft cover is resistant to dirtying; Machine washable for easy cleaning ✔ TWO TONE BREATHABLE EASY CLEAN COVER: Hypoallergenic breathable two-tone white/grey soft cover is resistant to dirtying; Machine washable for easy cleaning