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 monitors, there may be slight color difference between the picture and the actual product. About smell New shoes that have just left the factory may smell of glue, but it is not a quality problem. I hope it can be understood. The smell will dissipate after being placed in a ventilated place for a period of time Notice! Usually,order comes without shoes box,only a pair of shoes.But if you need a box,please contact us to increase the price. Refund and Return 1.If there is any problem with the order,please contact with our Customer Service first.We will try our best to help you. 2.All the items must be returned in original condition,otherwise we will refuse to refund. 3.The buyer is responsible for all charges occurred in returning process. Feedback 1.If you are satisfied with your order, please leave us all 5 stars including Item as Described. Communication and Shipping Speed. 2.if you think we can do better,please contact with our Customer Service first.We will give you a satisfied answer. (Warm suggestion: please take a bigger size for fat feet, wide feet and thick feet..)