Memory Foam Thigh Knee Leg Support Pillow New. Use as a leg pillow to support and align your lower body. Relieve low back pain, relax musclesand reduce pressure on hips, knees and joints. Great for moms-to-be or any side sleeper. Memory Foam permits airflow for ventilation and comfort and reacts to your body temperature by custom molding to your body shape, readjusting as you move and increasing weight distribution for maximum support and comfort. Feature: Cradle thighs, calves or heels in soothing comfort and support.