So what if someone wants to wear a swimsuit like that for non-Islamic reasons? (Such as being really afraid of getting sunburned and wanting as much skin to be covered up as possible?)
The only logical argument I can think of for this ban would be in the case of public pools. Looking at photos, it looks like most of the "burkinis" have loose fabric that could ostensibly get caught in a pool filter and cause the wearer to potentially drown. But that logic doesn't hold up when it comes to public beaches.
Hygene issues. Those things are probably filthy.
