Go for a navy and white crew-neck t-shirt and navy vertical striped dress pants to achieve a neat and sophisticated outfit. Finishing off with loafers is an effective way to infuse a sense of elegance into this look. Keep this getup in your front hall wardrobe when warmer days are here, and rest assured, you'll save a ton of time crafting an ensemble on more than one morning. This is a vivid example of how to dress fashionably in your twenties.