Old Style Softball Pants

Circa late 50’s/early 60’s there was a style of softball pants that was popular in Chicago. They were ankle length with a tab/snap at the bottom to tighten up a bit. Fairly baggy with a broad stripe down the side. A semi-educated guess is that they were cotton.

Familiar to anyone? Any chance they are still available? I’m thinking there’s a possibility they could be popular with the 16" crowd.