Size Chart:

US6: Ball Girth: 8.4", Foot Length: 8.7", Heel Height: 0.3"

US6.5: Ball Girth: 8.5", Foot Length: 8.9", Heel Height: 0.3"

US7: Ball Girth: 8.7", Foot Length: 9.2", Heel Height: 0.3"

US8: Ball Girth: 8.9", Foot Length: 9.5", Heel Height: 0.3"

US9: Ball Girth: 9.1", Foot Length: 9.7", Heel Height: 0.3"

US9.5: Ball Girth: 9.3", Foot Length: 10.0", Heel Height: 0.3"

US10.5: Ball Girth: 9.4", Foot Length: 10.2", Heel Height: 0.3"

US11: Ball Girth: 9.6", Foot Length: 10.5", Heel Height: 0.3"

This data was obtained from manually measuring the product, it may be off by 1-2 CM