Size Chart:（Product Measurement）
US6: Foot Length: 9.05", Shoes Inner Length: 9.25"
US6.5: Foot Length: 9.31", Shoes Inner Length: 9.51"
US7: Foot Length: 9.58", Shoes Inner Length: 9.78"
US8: Foot Length: 9.84", Shoes Inner Length: 10.04"
US9: Foot Length: 10.11", Shoes Inner Length: 10.30"
US9.5: Foot Length: 10.37", Shoes Inner Length: 10.57"
US10.5: Foot Length: 10.63", Shoes Inner Lengthh: 10.83"
US11: Foot Length: 10.9", Shoes Inner Length: 11.09"
This data was obtained from manually measuring the product, it may be off by 1-2 CM