- Size: 37 • Reduce muscle fatigue in feet and legs with our memory foam insoles. • Keep your feet dry and fresh thanks to their moisture-wicking capability. • Enjoy support and comfort all day long, ideal for running, working, or walking. • Custom fit that adapts to the shape and weight of your foot for a unique experience. • Designed for daily use in wide and high-volume shoes like athletic sneakers and work boots. • Suitable for flat feet, heel pain, foot pain, plantar fasciitis, and pronation.