US SIZE 6=Euro/China Sizes 21= Lnner length 13 CM
US SIZE6.5=Euro/China Sizes 22= Lnner length 13.5 CM
US SIZE 7=Euro/China Sizes 23= Lnner length 14 CM
US SIZE7.5=Euro/China Sizes 24=Lnner length 14.5 CM
US SIZE 8=Euro/China Sizes 25=Lnner length 15 CM
US SIZE 9=Euro/China Sizes 26= Lnner length 16 CM
US SIZE9.5=Euro/China Sizes 27= Lnner length 16.5 CM
US SIZE 10=Euro/China Sizes 28= Lnner length 17 CM
US SIZE11=Euro/China Sizes 29=Lnner length 17.5 CM
US SIZE11.5=Euro/China Sizes 30=Lnner length 18 CM