Ok 
For more serious situations at work or something like that of course they would not, but something more classic. 
 
I think they use in situations of friends, family, beach etc. .. 
 
What do you guys think of the combination of crystal black / + red, looks good? 
 
Another one I experienced in my local shop was polished clear / violet. 
 
 
 
Wich one the looks better?