1.Dear customer: Our size is Chinese size，better to choose 1-2 size bigger if your foot is a little wide or instep is a little higher. 2.Color Our color name is just name，pls take photo as finally reference. 3.Russian customers: Pls leave contactor full name 4.Brazil customer: Pls choose 2 size bigger than your size in your contry. thanks a lot，wish you a happy shopping US size 4= EUR 34 = 22 cm(foot length) US size 5= EUR 35 = 22.5 cm(foot length) US size 6= EUR 36 = 23 cm(foot length) US size 6.5= EUR 37 = 23.5 cm(foot length) US size 7.5= EUR 38 = 24 cm(foot length) US size 8.5= EUR 39 = 24.5 cm(foot length) US size 9= EUR 40 = 25 cm(foot length) US size 9.5= EUR 41 = 25.5 cm(foot length) US size 10= EUR 42 = 26 cm(foot length) US size 10.5= EUR 43 = 26.5 cm(foot length) US size 11= EUR 43 = 27 cm(foot length) US size 12= EUR 43 = 27.5 cm(foot length) US size 13= EUR 43 = 28 cm(foot length) US size 14= EUR 43 = 28.5 cm(foot length) US size 15= EUR 43 = 29 cm(foot length)