The heel pad is made molded medical grade silicone to absorb impacts in the area of heel area and reduce the shock and vibration to the joints, back and hip. Extra-soft green insert can give softer cushioning and comfort. It is non-allergic for skin and odor free. It is very easy to be washed by hand, dry in the air and suit to the most footwear.The Super Ortho Insole Silicone Heel Pad (O0-015) – XL is designed to provide shock absorption and cushioning for the heel area, helping to relieve pain and discomfort caused by conditions like plantar fasciitis, heel spurs, Achilles tendonitis, and general heel pain. Made from high-quality, medical-grade silicone, the heel pad offers excellent elasticity and durability, providing superior comfort during walking or standing for long periods. Its XL size fits larger shoe sizes comfortably, and the non-slip surface keeps the pad securely in place inside the shoe.