- Size: 36 • High-density memory foam insoles that mold to the shape of the foot, providing optimal cushioning and reducing heel impact. • Breathable design that allows air circulation, keeping feet dry and comfortable all day long. • Ideal for a wide variety of footwear, including hiking shoes, casual, work, and dress shoes. • Perfect for people who spend a lot of time on their feet, such as runners, travelers, hikers, office workers, and athletes. • Easy to maintain: washable with warm water and soap. It is recommended to replace them every month to maintain foot health.