material: cotton
S: 48CM for 1-2 years
M: 50CM for 2-3 years
L: 52CM for 3-4 years
XL: 54CM for 5-6 years
material: cotton
S: 48CM for 1-2 years
M: 50CM for 2-3 years
L: 52CM for 3-4 years
XL: 54CM for 5-6 years