Pls Check The Size Chart For Reference:
Size Recommend for Kid Sole Length Sole Width Shoes Height
S(1) 0-6 Months 11.2cm / 4.41'' 5.5cm / 2.16'' 7.5cm / 2.95''
M (2) 7-12 Months 12.5cm / 4.92'' 6.0cm / 2.36'' 8.0cm / 3.15''
L (3) 13-18Months 13.3cm / 5.23'' 6.5cm / 2.56' 9.0cm / 3.54''