Such essentials as a multi colored harrington jacket and a hoodie are an easy way to introduce extra cool into your current casual collection. Complete this outfit with black and white canvas low top sneakers and you're all done and looking spectacular. So as you can see here, it's a knockout, not to mention spring-ready, look to keep in your transeasonal closet. Casual ensembles for 20-something gentlemen aren't actually that hard, as you see.