US size 5=22.6-23.0 CM,
US size 5.5 =22.6-23.0 CM,
US size 6 =23.1-23.5 CM,
US size 6.5 =23.5-24.0 CM,
US size 7 =23.5-24.0 CM,
US size 7.5 =24.1-24.5 CM,
US size 8 =24.6-25.0 CM,
US size 8.5 =24.6-25.0 CM,
US size 9 =25.1-25.5 CM,
US size 9.5 =25.6-26.0 CM,
US size 10 =25.6-26.0 CM,
US size 10.5 =26.1-26.5 CM,