Size 31/shoe inner length is about 20.0cm

Size 32/shoe inner length is about 20.6cm

Size 33/shoe inner length is about 21.3cm

Size 34/shoe inner length is about 22.0cm

Size 35/shoe inner length is about 22.6cm

Size 36/shoe inner length is about 23.3cm

Size 37/shoe inner length is about 24.0cm

Size 38/shoe inner length is about 24.6cm

Size 39/shoe inner length is about 25.3cm

Size 40/shoe inner length is about 25.9cm