Visco-elastic insert

A heel support comprising:

• a main body including a first region made from a first visco-elastic material with a first hardness, a third region made from a second visco-elastic material with a second hardness, and a second region made from the first visco-elastic material with the first hardness in which elements made from the second visco-elastic material with the second hardness are embedded;
• and,
• a shell arranged on an outer edge of said main body;
• said second region being surrounded by said first region and said third region being surrounded by said second region;
• said second visco-elastic material of said third region being softer than said first visco-elastic material of said first region;
• and,
• said second region having a kidney-like or a tear-like planar shape.

An insert comprising:

• a main body including a first region made from a first visco-elastic material with a first hardness, a third region made from a second visco-elastic material with a second hardness, and a second region made from the second visco-elastic material with the second hardness in which elements made from the first visco-elastic material with the first hardness are embedded;
• and,
• a shell arranged on an outer edge of said main body;
• said second region being surrounded by said first region and said third region being surrounded by said second region;
• said first visco-elastic material of said first region being softer than said second visco-elastic material of said third region;
• and,
• said first region having a first abutting edge, said second region having second inner and outer abutting edges, and said third region having a third abutting edge;
• said first abutting edge, said second inner and outer abutting edges, and said third abutting edge having protrusions and abutting clearances;
• said first abutting edge of said first region and said second outer abutting edge of said second region being intermeshed with each other through the protrusions and abutting clearances of said first abutting edge and said second outer abutting edge in a mutually matching serpentine manner or in a toothed manner;
• said second inner abutting edge of said second region and said third abutting edge of said third region being intermeshed with each other through the protrusions and abutting clearances of said second inner abutting edge and said third abutting edge in a mutually matching serpentine manner or in a toothed manner;
• and,
• said second region having a kidney-like or a tear-like planar shape.