People can be allergic to a lot of things. There are no natural or man-made materials guaranteed not to cause allergies, not even wool, cotton, silk, polyurethane or nylon. This is why people with allergies should wear their shoes for a while indoors to keep them in new condition, in case they need to exchange them for another model.
If you are allergic to plastic, we recommend kybun sandals (which have leather insoles), or you can use a thin leather insole for closed shoes. Some parts in the middle lining of the shoes are glued with latex adhesive. Although these areas do not come into direct contact with the skin, we cannot guarantee that there is no latex adhesive on other parts of the shoe.
We only use rubber parts rarely, and always on the outer part of the shoe, as on the Santis or Rigi models. There is no risk of direct contact with the skin in such cases.
The mesh (material insert) is treated with Zeolite for antibacterial effect.
If you have any questions on this topic, please contact us at: info(at)kybun.us