Size number here is totally different from shoe size chart in your country, but your bare foot length would never change , so you must measure your bare foot with a ruler , then choose size with chart below . Unit: mm - millimeter , Bare foot length Insole length Sole length Women size for this shoes : Bare foot length 22.5, China shoe size 35, Chose 5 Bare foot length 23, China shoe size 36, Chose 6 Bare foot length 23.5, China shoe size 37, Chose 7 Bare foot length 24, China shoe size 38, Chose 8 Bare foot length 24.5, China shoe size 39, Chose 9 Bare foot length 25, China shoe size 40, Chose 10 Bare foot length 25.5, China shoe size 41, Chose 11 Bare foot length 26, China shoe size 42, Chose 12 Bare foot length 26.5, China shoe size 43, Chose 13 The size is measured by hands, it may has 1-5 mm different. We send CN size,please refer to your foot lenth to chose US size,For exsample, if my foot length is 240mm, I will chose the US size 8 = CN size 38. If your foot is narrow and thin, you can chose one size smaller. If your foot is wide and fat, you can chose one size bigger. Insole length is usually 0-15 mm longer than foot length for normal shoes About chromatic aberration. There might be sightly difference in color because of the computer monitor settings. Online shopping cannot be completely avoid chromatic aberration, please take carefully who are serious to colors. Wholesale and drop