- Size: 41 • 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. • Super lightweight and washable, ideal as replacement insoles to enhance the comfort of any footwear. • Suitable for daily use in a variety of footwear, from hiking shoes to work and dress shoes. • Perfect for people who spend a lot of time on their feet or want to reduce pressure on their feet, such as runners, travelers, and professionals in various fields.