Some long sleeve t-shirts are meant to be seen. A fitted long sleeve tee under a slip dress or oversized button-down creates a deliberate layered look rather than just a practical coverage solution. The fit is closer to the body which means the sleeves stay in place and the proportions stay clean when worn under looser pieces. Color becomes more important because this shirt is part of the visible outfit. These are the fitted long sleeve t-shirts that work as a complete outfit component rather than just as invisible support infrastructure.