pedag® MERINO is the ultra-thin and silky-soft natural insole for all seasons. German made the super-fine and soft fibers of the merino wool have millions of microscopically small air chambers. The air stored in these chambers naturally regulates the temperature inside the shoe any time of year. In spring and summer, pedag® MERINO cools your feet, in fall and winter it keeps them warm and cozy. The insole is only about 3 mm thick so it fits in any shoe.