Windfree eliminates wind noise and provides better hearing! The human ear is not designed to move faster than 15 km/h. These days we ski, skate, ride, sail, cycle and jump at speeds of over 50 km/h. This generates wind noise of about 100dB. Many of us have been looking for a way to remove the wind noise without impairing hearing. Different types of ear plugs and ear protectors entail a reduced sensitivity for equipment and details. How sails are trimmed, how a horse is breathing or how gears engage. With Windfree you can sharpen your hearing and retain the sensitivity. Windfree removes the wind noise and allows you to hear. Really fast animals are adapted to cope with high speeds much better than we are. Their ears are protected by fur that allows sound to reach them but not wind. Our development work was largely based on this phenomenon. Windfree comprises a foam with a cell structure that removes wind noise and allows you to hear twice as well.To increase comfort, we also use Outlast, a material that is cold when it is warm and warm when it is cold. Outlast was developed by NASA for the purpose of evening out the temperature for astronauts when working in space