Inner length 21 yards inner length 13.3cm 22 yards inner length 13.8cm 23 yards inner length 14.2cm 24 yards inner length 14.7cm

25 yards inner length 15.2cm 26 yards inner length 16cm 27 yards 16.8CM 28 yards 17.3CM 29 yards 17.8CM

30 size 18.2CM

because the light-on shoes are not USB interface, it is a battery of the sole that can store electricity and light up. Sometimes it will not light up over time, it is normal if one is bright and one is not bright or one is bright and the other is dark. If there is a light problem, for example, the left and right lights are different, the left and right lights will be bright and one will not be bright, problems such as uneven color are not handled as quality problems. Please be careful if you mind!!

Inner length 21 yards inner length 13.3cm 22 yards inner length 13.8cm 23 yards inner length 14.2cm 24 yards inner length 14.7cm

25 yards inner length 15.2cm 26 yards inner length 16cm 27 yards 16.8CM 28 yards 17.3CM 29 yards 17.8CM

30 size 18.CM

because the light-on shoes are not USB interface, it is a battery of the sole that can store electricity and light up. Sometimes it will not light up over time, it is normal if one is bright and one is not bright or one is bright and the other is dark. If there is a light problem, for example, the left and right lights are different, the left and right lights will be bright and one will not be bright, problems such as uneven color are not handled as quality problems. Please be careful if you mind!!