LACE-UP FITTING STRUCTURE

A lace fitting structure for fitting an upper 3 wrapping around an instep of a foot to the instep, the structure including: a medial side portion 31 covering the instep and a medial side surface of a big toe; a lateral side portion 32 covering the instep and a lateral side surface of a little toe; first shoelace means 1 placed to extend in a longitudinal direction Y of the foot and engaged with the medial side portion 31 and the lateral side portion 32 along central edge portions 33 of the medial side portion 31 and the lateral side portion 32 ; placement means for placing a portion of the first shoelace means 1 so that the first shoelace means 1 is exposed in a plurality of exposed areas 1 i , which are separated from one another in the longitudinal direction Y; and second shoelace means 2 engaging, in a transverse direction X of the foot, with the first shoelace means 1 in the plurality of exposed areas 1 i so as to bring the medial side portion 31 and the lateral side portion 32 closer to each other, wherein a length L of the exposed areas 1 i in the longitudinal direction Y is greater than a thickness and a width of the second shoelace means 2 .