The bag may have been described as purple or lavender at one point. Now it was best described as faded. People had said he should get a new bag. It would look nicer; he could get one with pockets for sweaty clothes, and so forth.
But replacing a gym bag out of something other than necessity would have the same effect as the cutting of Samson’s hair. He would lose his power. More than that, he would lose his identity.
A new bag makes you the same as everybody else who has a new bag. And who wants that shit?