The high-tops, apparently. http://www.chucksconnection.com/history.html
Personally, I can't get over the cult-ness of them, but I think I am going to pick up a pair of black Purcells next time I'm up near GI Joes. On this topic, my roommate (who went with Slim and me to Japan) bought a pair of black lowtop Chucks at GI Joes that had a pink tongue and pink edging around the white part. He the girls' section because the men's black low-tops were sold out in his size. Among all the zillions of shoes, including lots of Chucks, that we looked at in Tokyo, we never once saw that model there.