Sports Felt Insoles - Traditional Craftsmanship for Feel-Good Feet There are many ways to increase the comfort of shoes. One of the oldest variants is the felt insole made of purely natural materials. It is produced in a process that was already known to humans thousands of years ago and has proven itself to this day. Felt shoe insoles have many positive properties Felt insoles are made from fine wool threads that are pressed under pressure. They therefore keep the feet reliably warm, especially in winter. Now you might think felt is not for warmer days? In fact, you can also wear felt shoe insoles in summer, because the wool is breathable and ensures optimal temperature compensation. Wool also has the ability to absorb a lot of moisture and wick it away, keeping your feet dry at all times. In addition, felt shoe insoles are also suitable for people who suffer from foot odor, because the wool binds unpleasant odors.