Hydro Flats Sizing Guide

EU Size US Women's US Men's Foot Length (cm/inches)
36-37 5-6 4-5 22 / 8.5-9.1
38-39 7-8 5.5-6.5 23 / 9.4-9.7
40-41 9-10 7-8 24 / 9.9-10.3
42-43 11-12 9-10 25 / 10.6-10.9
44-45 13-14 11-12 26 / 11.2-11.6
46-47 15-16 13-14 27 / 11.8-12.2
48-49 17-18 15-16 28 / 12.4-12.8
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