Assos or Castelli are the high end ones in the Europe.
I don't know about Assos jerseys but I do have some of their padded leggings and all I can say is that once you have tried them, you will never, ever want to go back to the low end ones again. There is just something about them the moment you put them on that says quality and they are, oh so comfortable! I even took a pair of Assos shorts and long leggings on my world tour with me they are so comfortable. I will warn you though, if you have an accident and have to have it cut off you, you will cry whether injured or not! You will also need to sell and arm or a leg to afford much of their kit!