Jams were a fashion status symbol. They were basically just surfer shorts made out of the most garish pattern and colored fabric they could find. They were a part of a resurgence of surfer style clothing of the eighties along with clam diggers.

I never had a official pair of jams, just plain old super garish shorts.

Here’s a link to one of the best and probably only comics done about Jams. It is by a great cartoonist who goes by the name Dharbin.

(Make sure you click on the :next” link a the bottom of the pages to read the whole story)