Hmmmm....Those Quark's would work great at 3.4 ounces, but I too doubt they weigh so little. I have a pair of Crocs (the rugged, beefy version, not the standard Crocs) and ONE of them max's out my food scale which has a 7.0 ounce capacity.
Ron, those mesh shoes look real light. Maybe I could have a rep from that company weigh them for me. For $5, I may just order them and weigh for myself.
It also just struck me that Old Navy might make some super light(cheap) flip flops. The $1.99 ones on their website can't weigh much at that cost.
I think I'll get more info on these items and report back.