Women's Lightweight Sneakers Casual Athletic Mesh Breathable Running Walking Shoes - B076H1LZ1Y

5 = feet length 22.8cm = 8.98 inch
6 = feet length 23.5cm = 9.25 inch
6.5 = feet length 23.8cm = 9.37 inch
7 = feet length 24.1cm = 9.49 inch
8 = feet length 24.8cm = 9.76 inch
8.5 = feet length 25.1cm = 9.88 inch
9 = feet length 25.4cm = 10 inch
10 = feet length 26cm = 10.24 inch
11 = feet length 26.7cm = 10.5 inch
If your feet have a bit fat,please choose one bigger size,the number on the shoes is CN size

Women's Lightweight Sneakers Casual Athletic Mesh Breathable Running Walking Shoes - B076H1LZ1Y