First, slim. Wearing a black T will improve your figure and make you look better.
Second, it is easy to wash. Compared with white T, black is not so delicate, and some stains are not easy to see. I believe that many people's white T's were killed by oil stains and juice and finally thrown away.
Black clothes absorb heat, but they don't absorb ultraviolet rays. Compared with white, it won't get tanned. Black easily absorbs radiant heat and releases radiant heat. Hipster stars like black T-shirts very much. Everyone can wear different styles according to different items.