Ajvani Women's Mid Heel Wedge Leather Elastic Smart Work Loafers Shoes Size 9 40 Leather Sizes displayed on the shoe are in UK or EU sizes. US 5 = UK 3 / EU 36 -- US 6 = UK 4 / EU 37 -- US 7 = UK 5 / EU 38 -- US 8 = UK 6 / EU 39 -- US 9 = UK 7 / EU 40 -- US 10 = UK 8 / EU 41 Leather Upper 5.5 cm (2.1 Inches) Shaft Height 8 cm (3.1 Inches) Sole Width 4.5 cm (2.1 Inches) Heel Height