You'll be amazed at how very easy it is for any man to put together a casual street style outfit like this. Just a multi colored print short sleeve shirt and a navy crew-neck t-shirt. If you're not sure how to finish, a pair of grey canvas low top sneakers is a winning option. It's a wonderful option when it comes to putting together a standout look for weird fall weather. Interested in dressing ideas for 20-something gents? This outfit is great inspo.