Shoe upper material: mesh fabric Sole Material: Rubber D e scription For Size Please choose size according to the foot length (from heel to toe )! Different country different material have different size standard . So our US size ,Europe size may have some different with yours. Pls measure foot length at first and then choose size correspondingly. The size number marked in shoe outsole is China size number, not European size. About chromatic aberration Due to the different contrast of personal …