For everyday, look for long- or short-sleeve bodysuits in opaque stretch jersey or ribbed knit with a crew, scoop, or turtleneck. These sit cleanly under blazers, cardigans, and denim jackets. Neutral shades like black, brown, or nude blend easily with denim and tailored trousers. Avoid very low backs or plunging necklines if you plan to wear them to the office.