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) – Large is engineered to provide excellent shock absorption and cushioning for the heel area, reducing pain and discomfort associated with plantar fasciitis, heel spurs, Achilles tendonitis, and other heel-related issues. Crafted from medical-grade silicone gel, this heel pad offers superior elasticity and durability. The large size is designed to fit larger feet comfortably, with a non-slip surface that ensures it stays firmly in place inside the shoe during movement. This helps in distributing pressure evenly and reducing impact stress on the heel.