Size conversion chart - Geox J Casey C Black Smooth Leather

CM	EU	UK	US
24 CM	36 EU	3 UK	4 US Big Kid
24.7 CM	37 EU	4 UK	5 US Big Kid
25.4 CM	38 EU	5 UK	5.5 US Big Kid
26 CM	39 EU	6 UK	6 US Big Kid
26.7 CM	40 EU	6.5 UK	6.5 US Big Kid
27.3 CM	41 EU	7 UK	7 US Big Kid