Kiya, really man? I've been to your store and bought a pair of 3sixteens, and both your sales guys were pretty cool. I really don't know what I'm talking about, as I don't study denim, but I did want to try on a pair and see how they felt. I know this is an internet forum, so I shouldn't expect much, but anyone with 300 can buy a pair, they aren't that special.
It was a joke, don't take it personally. You're asking for Iron Heart's jeans in denim that is not "super thick". Iron Heart only makes 21oz denim (not including collaborations or special editions), which by today's standard's is freakishly heavy in weight. If you're not looking for heavy i'd look at pretty much any brand except Iron Heart. Dry Bones, Flat Head, Sugar Cane, John Bull, Pherrow's, Real Japan Blues, etc.. they all make a more standard 14.5oz denim that's probably more what you're looking for.