One of the most sensitive materials used for car interior is leather such as leather seats. There are a lot of different materials and surface processing for both artificial and genuine leather, but the common weak points of leather are that it can get dirty easily and the difficulty of care. Traditionally, main processes of leather care have been cleaning and applying treatment chemicals afterward to moisturize the leather. However, in terms of protection from dirt, not much effect is expected. Although it would seem great if a strong protective coat like glass coat on auto body was formed on leather, such a strong coat would not match the leather materials. ECHELON for Leather is a revolutionary coating agent to protect leather surfaces with glass coat without ruining the texture of leather materials.