Size Chart:

US Size 5 = EUR Size 21 = Inner Length 13.5cm

US Size 5.5 = EUR Size 22 = Inner Length 14.0cm

US Size 6 = EUR Size 23 = Inner Length 14.5cm

US Size 6.5 = EUR Size 24 = Inner Length 15.0cm

US Size 7 = EUR Size 25 = Inner Length 15.5cm

US Size 8 = EUR Size 26 = Inner Length 16.5cm

US Size 9 = EUR Size 27 = Inner Length 17.0cm

US Size 10 = EUR Size 28 = Inner Length 17.5cm

US Size 10.5 = EUR Size 29 = Inner Length 18.0cm

US Size 11= EUR Size 30 = Inner Length 18.5cm

US Size 11.5 = EUR Size 31 = Inner Length 19.5cm

US Size 12 = EUR Size 32 = Inner Length 20.0cm

US Size 12.5 = EUR Size 33 = Inner Length 20.5cm

US Size 13 = EUR Size 34 = Inner Length 21.5cm

US Size 13.5 = EUR Size 35 = Inner Length 22.0cm

US Size 1 = EUR Size 36 = Inner Length 22.5cm

US Size 1.5 = EUR Size 37 = Inner Length 23.0cm

US Size 2 = EUR Size 38 = Inner Length 24.0cm

US Size 2.5 = EUR Size 39 = Inner Length 24.5cm

US Size 3 = EUR Size 40 = Inner Length 25.0cm

US Size 3.5 = EUR Size 41 = Inner Length 25.5cm

US Size 4 = EUR Size 42 = Inner Length 26.0cm

US Size 4.5 = EUR Size 43 = Inner Length 26.5cm