Health-Safe Materials Our leg elevating pillow is made from CertiPUR-US certified high-density memory foam, ensuring no harmful substances and providing a safe and reliable option for your health. Whether for daily use or special recovery, you can use it with confidence. Comfortable Support Design This leg elevation pillow features a 6.8-inch 25D high-density foam base combined with a 1.2-inch 40D soft memory foam layer that perfectly conforms to your legs for maximum comfort. You don t have to worry about it losing its shape; it retains its elasticity even with prolonged use. Attention to Detail The bottom of our knee wedge pillow has a non-slip design to effectively prevent sliding. It comes with a removable zippered cover made from soft, breathable material for easy cleaning, ensuring hygiene and cleanliness.