What I want to talk about is straps. Straps, I am told, are one of the most uncomfortable and problematic parts of the whole concept of brassieres. I am amazed that it has taken until very recently to discover wide straps. If men wore them, they would have had wide, padded straps like a safety belt. You have to understand that there is a basic law of physics involved here.
Wide straps distribute the load better than narrow straps.
I believe you can tell a woman's age by measuring the depth of the grooves in her shoulders. This works out conveniently because the older a woman gets, the larger her purse, and these shoulder grooves prove to be an ideal place to hang a purse. The other reason for narrow straps was that women did not want their straps to be visible. It just wasn't done. I recall a contraption that my wife had that was strapless and backless.