Footwear structure comprising a footwear unit having an upper and a sole , and an electronic light system integrated in said footwear unit , wherein said upper and said sole are constrained to one another and wherein said electronic light system comprises a power source , a programmable light screen , a connecting port , first connecting means extended between said programmable light screen and said power source , wherein said first connecting means comprise first cables with no interruptions for continuously and directly connecting said programmable light screen and said power source , and second connecting means extended between said power source and said connecting port , wherein said footwear unit is equipped with a through opening extended on said upper or on said sole, wherein said programmable light screen overlaps said through opening from an outer side of said footwear unit , characterized in that said through opening includes a first section and a second section wherein said second section branches from said first section , wherein said first section of said through opening has length (I') equal to or greater than the height (a) of said programmable light screen , wherein said first section of said through opening has a height (a') equal to or greater than the thickness (s) of said programmable light screen , the opening being suitable for, during the implementation of the footwear structure , the passage of the programmable light screen in the first section , and the passage of the first connecting means in the second section , when the programmable light screen overlaps the through opening for being combined to the outer side of the footwear unit . wherein said upper and said sole are constrained to one another and wherein said electronic light system comprises a power source , a programmable light screen , a connecting port , first connecting means extended between said programmable light screen and said power source , wherein said first connecting means comprise first cables with no interruptions for continuously and directly connecting said programmable light screen and said power source , and second connecting means extended between said power source and said connecting port , wherein said footwear unit is equipped with a through opening extended on said upper or on said sole, wherein said programmable light screen overlaps said through opening from an outer side of said footwear unit , characterized in that said through opening includes a first section and a second section wherein said second section branches from said first section , wherein said first section of said through opening has length (I') equal to or greater than the height (a) of said programmable light screen , wherein said first section of said through opening has a height (a') equal to or greater than the thickness (s) of said programmable light screen , the opening being suitable for, during the implementation of the footwear structure , the passage of the programmable light screen in the first section , and the passage of the first connecting means in the second section , when the programmable light screen overlaps the through opening for being combined to the outer side of the footwear unit . <EOS>