Belt with an elastic insert for holding a buckle and a related manufacturing method

A belt, comprising:

• a strap made of a substantially non-elastically extensible material, defining a tip of the belt;
• a buckle having at least one anchoring bar for anchoring the buckle to the strap;
• an elastic insert made of an elastic material folded on itself and having opposite edges fixed to one end of the strap in a longitudinally opposite position to the tip of the belt, wherein said elastic insert is fixed to the strap to hold the anchoring bar of the buckle, and is configured so that the buckle can be moved longitudinally away from the strap with a tensile force sufficient to overcome the restoring force of the elastic insert,
• wherein the opposite edges of the elastic insert folded on itself are sewn with a bar tack directly on or in the strap, with said bar tack passing through both the strap and through said opposite edges of the elastic insert to hold the anchoring bar of the buckle;
• wherein the end of the strap opposite to the tip is split longitudinally in the thickness of the belt, such that a first fin and a second fin are defined by the split end,
• wherein the opposite edges of the elastic insert folded on itself are sewn with said bar tack between said first and second fins,
• wherein the bar tack simultaneously passes through both the strap and the elastic insert, with the first fin and the second fin sandwiching the opposite edges of the elastic insert.