Sexy look but has a little issue

These are super sexy but we ordered the blue one and it had white behind the chest area looks strange. Seller did make it right and I also got a red one that did have all red material. Really sexy. But usually wear a medium and small fits better. I've ordered plenty of stuff from this seller that has been great. So most likely just a mistake. It does adjust on the straps it also is very comfortable. I machine washed on the gentle cycle no issues at all. I didnt try drying in a dryer I just let it air dry didnt take long.