Convenient but unpleasant odor

The shoe made initially optically a good impression. Also the comfort was good and the shoe could be worn comfortably all day. However, were quick to see wrinkles on the top of the shoe, although we have previously rubbed him with a shoe cream. Even more unpleasant was the smell of the shoe. As soon as you open the box we noticed an unpleasant (plastic?) Smell which did not disappear even after airing on the balcony. After wearing the shoes this was even more intense, so which one (s) did not like to take off the shoe. For this reason, we have the need to send back shoe unfortunately.