It's just his muscle XD, apparently Devil Jin has quite a beefy upper body(Jin too but it's played up more on Devil Jin in T7. Jin's similar outfit in this game has basic jeans and a non tight shirt, but he has muscle shirts in T6 in assorted colors.) so his unique shirt customization unlike Jin is tight and is for fitting, it literally clings to his pecs, arm muscles, back and abs ♡.♡ That and the jeans are significantly tighter than Jin's, good god....
Nah, it still looks weird. The Tekken 3D artists don't know how to model fitted clothing for their life. It's always bulky and unnatural.
Here's an example of well modelled, tightly fitted clothing.


BTW, who you gonna use if you get the game Tyaren? I can see you using Anna honestly xD tell me if you wanna know some tricks with her, I can teach you how to be a gentleman in the spectactor chat but a FREAK in dat one on one![]()
Not sure if I get the game yet.
Why Anna? XD In Tekken 6 I mostly used Jin and Hwoarang and in TTT2 it was mostly Hwoarang and Miguel. I especially liked Miguels brutish, uncomplicated and direct fighting style. I find Tekken's controls indirect and unituitive, so that helped a little with that.