Soles are the bottom part of a shoe that makes contact with the ground. They are typically made from materials like rubber, leather, or synthetic materials like EVA (ethylene vinyl acetate) and TPU (thermoplastic polyurethane).The main purpose of soles is to provide traction and grip, protecting the wearer from slipping or falling on various surfaces. They also offer cushioning and support for the feet, helping to absorb shock and reduce impact.