This combo of a navy crew-neck t-shirt and navy chinos makes for the ultimate laid-back style for any modern guy. Complement this getup with white leather low top sneakers and you're all set looking amazing. As you know, the key to getting through the hottest time of year is dressing in fresh getups like this one. Perfect if you're on the hunt for some amazingly inspiring relaxed casual style for 20-year-old men.