US Size 6.5=38     fit for foot length is 24.5cm

US Size 7=39       fit for foot length is 25cm

US Size 7.5=40     fit for foot length is 25.5cm

US Size 8=41       fit for foot length is 26cm

US Size 8.5=42     fit for foot length is 26.5cm

US Size 9=43     fit for foot length is 27cm

US Size 9.5=44      fit for foot length is 27.5cm