I don't get it why the majority of MMA shirts are black. If you start making these shirts try to do a ringer tee,raglan, football jersey styles.
I quite like this idea, I love the concept of a grungy cross between MMA shirst and Jerseys.The grunge style but do it colorfully on a jersey.
I also like camo if you can find the right one, Tap Out has used a little camo but Im not a fan of the pattern they use. Id suggest a white and grey "arctic" camo but you really need to search for the right one, camo is tough.