You'll be amazed at how easy it is for any guy to throw together a casual street style outfit like this. Just a blazer and black jeans. Tan suede chelsea boots are guaranteed to inject a dash of polish into your outfit. As you can see here, this getup is a really great pick, especially for transeasonal weather, when the temperature is getting lower. Wondering how to nail casual looks as you make it through your 20s? This combination is the perfect answer.