Okay so now I'm into this bjj, got the Gi ordered, been to a couple of classes, now like any red blooded male comes the equipment buying! (Yes we love it). Anyways, the CEO of oldmanjim enterprises i.e. Mrs Jim is not too pleased with the cost so far, I'm typing this so I'm not dead which is good. This brings me to my question....I need a big boy rash guard to fit a big boy. Something that will last and not too expensive. Are the heat gear type UA shirts worth it? Is a rash guard the same as a simple poly/spandex shirt? The brand name ones that are 50+ $ ...is that just paying for the name/cool design. I know some bjj competition require you to wear your belt color, but I'm far from that. Any help?