Size information is just a reference, buy it according to your child's real situation.
Size:L XL XXL
L 26CM Choose7t Se recomienda6-8Years
XL 28CMChoose10t Se recomienda9-11Years
XXL 30CMChoose12t Se recomienda11-13Years
Because of the differences in geography and children's weight, the differences may be large or small, just for reference.