Mares Razor Fins Size Charts
  39/40 41/42 43/44 45/46 47/48
USA Men's shoe size worn WITH 3mm sock 7-8 8.5-9.5 10-11 12-13 13-14
USA Men's shoe size worn WITHOUT 3mm sock 8.5-9.5 10-11 11-12 13-14 15-16
USA Women's shoe size worn WITH 3mm sock 9-11 10.5-11.5 12-13 14-15 -
USA Women's shoe size worn WITHOUT 3mm sock 10.5-11.5 12-13 14-15 - -

These are general guidelines only, sizes are not guaranteed. But no worries, since at LeisurePro we offer our exclusive PFF Guaranty