PREMIUM MEMORY FOAM:REDUCE BACK, HIP, LEG, KNEE & SCIATICA NERVE DISCOMFORT Alleviate hip, leg, and knee pain with the Everlasting Comfort Memory Foam Knee Pillow and get the best sleep of your life. The knee pillow is made with 100% premium quality memory foam. Superior to other pillows it won't go flat over time. ERGONOMIC CURVED DESIGNE: Treat yourself to luxurious comfort and restful sleep. The Knee Pillow is made of pure memory foam with no additives and its orthopedic contour keeps knees or leg separated with ideal spacing to support and align your legs,hips and spine. A truly ergonomic design with its soft curves & crescent shape to fit men & women comfortably. It also can be used as a knee spacer during pregnancy or after recovery. WASHABLE and BREATHABLE ZIPPERED COVER: The air layer fabric(Soft and comfortable,fit the skin) and Intermediate Hollowed-out Design inctease air mobility, no sweltering, the air-permeable area is wide which will not let your legs just get warm. The cover is machine washable for easy cleaning. ELASTIC STRAP: Get an undisturbed night's rest with its adjustable hook-and-loop strap that keep the knee pillow in perfect alignment between your legs even while you toss and turn. (Fits thigh size: appro.16-25") MULTI-POSITIONS USE: Place the pillow between your knees or legs while side sleeping, use it to elevate your feet, knees or calves or place it under your waist for extra support.