they look like they would be ugly but they work well actually and are also very durable.
It's a symbol! Please don't let them disappear! I use them since 15 years ago... and now it's very difficult to find new ones to add to my collection... I've lots but I still search for more...
One of the pairs is already coming apart from the front. I sent an email a few days ago and I have not received any update back.