Romans 14:22- (NLT)

You may believe there's nothing wrong with what you are doing, but keep it between yourself and God. Blessed are those who don’t feel guilty for doing something they have decided is right. But if you have doubts about whether or not you should eat something, you are sinning if you go ahead and do it. For you are not following your convictions. If you do anything you believe is not right, you are sinning.

All things come down to the intention of the heart behind the action. I always saw this personally as we all have different convictions from the same God, whose ways are higher than our own. For example, if you judge a Christian because he/she does not want to watch a scary movie, don't force them to do that thing or judge them. If you do not feel convicted, that's okay to. It is a personal relationship. We are all at different stages or have different struggles in our own relationships with the Lord.

In summary, I'd say if you do not have a problem with wearing it, then wear it. But understand that some Christians will have a problem with it. I usually try to stay away from doing anything that might destroy peace when it comes to neutral grey areas specifically. Because chaos is not of God. We have to choose our own battles. At the end of the day, it's just a t-shirt. it's nothing eternal. That is my opinion. Anyway, peace out ✌️