Size Chart:
334: 2-3 M US Little Kid = Insole Length 8.58in = EU33-34
356: 3.5-4.5 M US Big Kid = Insole Length 8.97in = EU35-36
378: 6.5-7.5 M US Women / 5-6 M US Men = Insole Length 9.37in = EU37-38
390: 8.5-9.5 M US Women / 7-7.5 M US Men = Insole Length 9.76in = EU39-40
412: 10.5-11 M US Women / 8-9 M US Men = Insole Length 10.15in = EU41-42
434: 12-13 M US Women / 10-11 M US Men = Insole Length 10.55in = EU43-44
456: 12-13 M US Men = Insole Length 10.94in = EU45-46
478: 14-15 M US Men = Insole Length 11.33in = EU47-48