Jantzen Swimwear from the fifties

It is amazing to look at these advertisements from the 1950's.
You can see where the whole Barbie Doll, no waist, figure comes from.  Something that was just always embedded in our brains of what we should look like.  Although  we should exercise and eat right (which I don't always do) to keep off extra weight so we can be healthy.  What do you think of these ads?

These ads are from X-Ray Delta One via Retronaut.co/