A light blue long sleeve shirt and white jeans combined together are the ideal combo for those who appreciate laid-back and cool styles. Add brown leather low top sneakers to the equation to tie the whole getup together. Keep this combo in your front hall wardrobe when warmer days are here, and we promise you'll save a ton of time trying to pick out an ensemble on more than one morning. And if we're talking casual style for 20-year-old men, this getup looks good on most guys.