The heel cushion pads are highly elastic as they are made of silicone. This material allows the heel pads to take shape and provide comfort and relieve to anyone irrespective of the feet size Comfortable & Breathable The heel pad is designed to give you an all day comfort as the soft silicone feature breathable holes around the heels that allows moisture and air to reach the skin. Support to Ankles With its ergonomic design the heel pads provide complete support to the heels and ankles of your feet which helps in preventing sprains and also helping in relieving plantar fasciitis. Wear it under any shoe/sock Perfect for any occasion or season as this heel pad can be worn under socks or alone when wearing any type of shoe. These are perfect or climbing hiking running people who stand for a long time and more. Keep your heels protected from strains sprains fatigue cracks and more with Eranqo's ergonomically designed silicone heels pad socks.