There is no special meaning in giving clothes, although it is more common for boyfriends and girlfriends to give clothes to each other. If you are just ordinary friends, there is no special meaning. It just shows that you have him in your heart and treat him as a friendly gift to show your concern for him.
In fact, as long as the gift is not particularly sensitive, such as roses or rings, there is nothing else. As long as the feelings between you are pure, there is no special idea, and you can treat each other sincerely and frankly, it is enough.
As for gifts, there is no need to have so many taboos. As long as you think it is suitable for him, you can give it boldly. If you think too much, even if it is a very ordinary gift, he will feel uncomfortable.