Size: 11 Recommended Age: 0-6 Months Insole -- Length: 11cm/4.3" EU: 19 -- UK: 3 -- US:4
Size: 12 Recommended Age: 6-12 Months Insole -- Length: 12CM/4.7" EU: 20.5 -- UK: 4 -- US:5
Size: 13 Recommended Age: 12-18 Months Insole -- Length: 13CM/5.1" EU: 22 -- UK: 5 -- US:6