We recommend choosing one size smaller for this design. Please refer to the size chart below: 
Size = Recommended Feet Length (cm)
35 = 23cm
36 = 23.5 cm
37 = 24cm
38 = 24.5cm
39 = 25cm
40 = 25.5 cm
Model A: Feet Length 23.5cm, Width 9cm, Slightly Thick Feet, Normal Size 37/38, Wear Size 36 for this design
 
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Model B: Feet Length 23.5cm, Width 9.5cm, Wear Size 36 for this design
 
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Model C: Feet Length 22cm, Width 8.5cm, Normal Size 35, Unable to wear this design. 
 
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Model D: Feet Length 24.5cm, Width 9.5cm, Wear Size 38 for this design