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 Silicone Heel Pad (O0-015) – Medium is designed to provide effective shock absorption and cushioning to the heel, relieving discomfort caused by conditions like plantar fasciitis, heel spurs, Achilles tendonitis, and general heel pain. Made from high-quality medical-grade silicone gel, this heel pad offers excellent elasticity and durability, making it comfortable for daily use. The medium size fits average shoe sizes and features a non-slip surface to keep the pad securely positioned inside the shoe for maximum comfort and support.