Here is a fun video of Ralph form ic berlin displaying the strength and flexibility of ic berlin frames.  It also shows how to put the temples back on to the eyewear if they would come off. ic berlin eyewear and sunglasses are made from stainless steel sheet metal and seem to just last forever.  We had a customer buy her ic berlin sunglasses 7 years ago from a shop out of town and wanted to replace her lenses. She had eventually scratched them. No problems getting replacement lenses and the frames were like new! She told us she wears her ic berlin sunglasses every day and can hardly believe what great shape they are in.