Size Chart:(Product Measurement)
US6:Shoes Inner length:9.0IN
US6.5:Shoes Inner length:9.2IN
US7.5:Shoes Inner length:9.5IN
US8:Shoes Inner length:9.7IN
US9:Shoes Inner length:10.0IN
US9.5:Shoes Inner length:10.3IN
US10.5:Shoes Inner length:10.5IN
US11:Shoes Inner length:10.8IN
This data was obtained from manually measuring the product, it may be off by 1-2 CM