GUARANTEED COMFORTABLE SLEEP: This side sleeper knee pillow features a double heart shape with a central arch and sloping sides to perfectly fit the curve of your legs. It provides great support for the thighs, knees and calves, reducing pressure on the legs and ensuring a comfortable sleep. High-density memory foam: Made of 100% high-quality and durable memory foam, the surface is pure cotton cloth (white is bamboo fiber), the side is mesh cloth, and the middle hollow design is breathable and can be easily bent to adapt to different legs. Wearing it, your legs can stay comfortable for a long time. Our pillow is better than other pillows because it won't flatten over time. Dual Straps Design: Elastic straps allow the cushion to support your legs. You can open the bed and find your favorite comfortable position without worrying about the knee pads slipping off your legs. Just the right size: measures approximately 53 x 25 x 8 cm/20.87 x 9.84 x 3.15 inches. It provides a large support surface from calf to thigh, is soft and supportive, and flexes easily. With the right approach, you can relieve back, hip, knee and ankle pain. COMFORTABLE AND PORTABLE: Our leg pillow can be used as a knee pad during pregnancy or during recovery. It is also convenient to use when traveling. This memory foam knee pillow has a washable cover for easy cleaning.