I fully support this statement
I have seen his pants torn once or twice, come on stop acting like you haven't noticed too
LOL. I just watched a video of the most powerful artifacts in the Marvel Universe, one of them is Hulk's chinos. XD It survives any strain the Hulk applies on it.
Maybe it's not only one of the most powerful but also the most mysterious. Hulk has been to a lot of places and met a lot of enemies. Maybe his chinos has absorbed a lot of particles and made it that way. LOL. We will never know.
Plot hole: no matter how beaten he is, only M-21's shirt gets ripped off, but not his pants. Author-nim, please do your job properly.