The midsole is a crucial part of footwear, especially in athletic shoes. It sits between the outsole, which is the bottom part that touches the ground, and the insole, where your foot rests. The midsole is primarily made of cushioning materials like EVA foam or polyurethane, designed to absorb shock and provide comfort during activities like running or walking. In addition to comfort, the midsole also plays a role in stability and support. Some midsoles are engineered with features like arch support or heel counters to help maintain proper foot alignment. This makes them essential for athletes and anyone looking for a comfortable shoe.