A tobacco shirt jacket and a multi colored horizontal striped polo are absolute menswear essentials if you're crafting a casual wardrobe that holds to the highest fashion standards. You can get a little creative in the shoe department and dress up this ensemble by finishing with a pair of white leather derby shoes. With springtime coming, it's time to sport simple and dapper combinations, just like this. So if you need fashion tips on what to wear in your 30s, this outfit is a great example.