US Size 8 M----Label size 25 ------ inner length 15.9cm/6.3 inches
US Size 9 M------Label size 26 ------ inner length 16.5cm/6.5 inches
US Size 10 M-----Label size 27 ------ inner length 17.3cm/6.8 inches
US Size 11 M-----Label size 28 ------ inner length 17.8cm/7.0 inches
US Size 12 M---Label size 29 ------ inner length 18.5cm/7.3 inches
US Size 12.5 M-----Label size 30 ------ inner length 19.3cm/7.6 inches
31/13 M Little Kid=Shoes length:196mm Fit foot length 189-196mm(7.4-7.7in)
32/1  M Little Kid=Shoes length:203mm Fit foot length 196-203mm(7.7-8.0in)
33/2 M Little Kid=Shoes length:210mm Fit foot length 203-210mm(8.0-8.3in)
34/3 M Little Kid=Shoes length:225mm Fit foot length 221-225mm(8.7-8.8in)
35/4 B(M) US Women/3 D(M) US Men=Shoes length:230mm Fit foot length 226-230mm(8.9-9.0 in)
36/5 B(M) US Women/4 D(M) US Men=Shoes length:235mm Fit foot length 231-235mm(9.1-9.2 in)
37/6 B(M) US Women/5 D(M) US Men=Shoes length:240mm Fit foot length 236- 240mm(9.3-9.4 in)
38/7 B(M) US Women/6 D(M) US Men=Shoes length:245mm Fit foot length 241-245mm(9.5-9.6 in)
39/8 B(M) US Women/6.5 D(M) US Men=Shoes length:250mm Fit foot length 246-250mm(9.7-9.8 in)
40/9 B(M) US Women/7 D(M) US Men=Shoes length:255mm Fit foot length 251-255mm(9.9- 10.0 in)
41/9.5 B(M) US Women/8 D(M) US Men=Shoes length:260mm Fit foot length 256-260mm(10.1-10.2 in)
42/10.5 B(M) US Women/9 D(M) US Men=Shoes length:265mm Fit foot length 261-265mm(10.3-10.4 in)
43/12 B(M) US Women/9.5 D(M) US Men=Shoes length:270mm Fit foot length 266-270mm(10.5-10.6 in)
44/13 B(M) US Women/10D(M) US Men=Shoes length:275mm Fit foot length 271-275mm(10.7-10.8 in)
45/14 B(M) US Women/11 D(M) US Men=Shoes length 280mm Fit foot length 276-280mm(10.9-11.0 in)

46/15 B(M) US Women/12 D(M) US Men=Shoes length 285mm Fit foot length 281-285mm(11.1-11.3 in)

* Inner length=feet length+(0.5~1.0cm)
  1inch=2.54cm