High quality materials: the gel insoles are made of silicone and velvet fibers. The materials used are safe and have no toxic effects. The 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. Pressure & Pain Relief: Gel Insoles Help Effectively Treat & Relieve Pain: Heel Spurs, Plantar Fasciitis, Heel Spurs, Foot Pain foot and Achilles tendonitis. Gel insoles absorb shock and reduce injuries from walking and movement. Comfort: Do your feet hurt when you walk or stand for long periods of time? Want your leather shoes to be as comfortable as sneakers? The sporty gel sole is designed to ensure maximum support and comfort for your feet. The insole is suitable for your daily use, and you can wear it all day to improve your health and comfort. Adjustable Size: The gel insoles fit all types of shoes. Our insoles are available in several sizes. Cutting lines are marked on the back of the soles so that you can easily cut the soles with a wood chisel. This allows the sole to adapt perfectly to your foot. Suitable for men and women. Gel insoles can be hand washed and air dried.