HIGH QUALITY MATERIAL: Gel insole is made of silicone + velvet fiber. The materials used are safe and have no toxic or side effects. High-quality silicone prevents the sole from slipping while being comfortable. The velor surface is breathable and limits perspiration. Your feet stay dry and clean. RELIEF STRESS AND PAIN: Gel insoles help effectively treat and relieve pain in: heels, heel spurs, plantar fasciitis, heel spurs, foot pain and Achilles tendonitis. Gel insoles absorb shock and reduce injuries while walking and playing sports. Comfort: Do your feet hurt when walking or standing for long periods of time? Do you want your leather shoes to be as comfortable as sneakers? The sole is designed to ensure maximum foot support and maximum comfort. The insoles are suitable for your daily use and you can wear them all day long to enhance your health and comfort. ADJUSTABLE SIZE: Gel insoles fit all types of shoes. Our insoles are available in a variety of sizes. This fits your feet perfectly. Suitable for both men and women. Gel insoles can be hand washed and air dried.