- Size: 37 These full-foot insoles are made of thick and soft memory foam, greatly helping you when working or standing all day, offering lasting cushioning and support for your feet, helping to reduce pain in case of plantar fasciitis or heel spur. TIESTRA memory foam insoles slowly adapt to the shape of the foot, evenly distributing pressure when standing, walking, and running. - Made with high-quality memory foam - Memory Foam Technology for comfort with every step - Helps relieve sports injuries such as plantar fasciitis - Breathable surface to improve air circulation - Suitable for different types of shoes - Washable and lightweight