Choose a navy blazer and tobacco chinos and you'll be the picture of manly refinement. Put a more sophisticated spin on your outfit by rocking a pair of tassel loafers. Undoubtedly, it's easier to work through a baking hot warm weather afternoon in a summery combo like this. This pairing demonstrates that dressing appropriately for your age and looking fashionable are not mutually exclusive things for a 20-year-old man.