When the setting calls for a sophisticated yet cool menswear style, you can rock a navy waistcoat and olive cargo pants. Why not take a more laid-back approach with shoes and introduce a pair of white canvas high top sneakers to the mix? When temps are getting lower and fall is setting in, you'll love this getup as your go-to for transeasonal weather. This outfit proves that in your thirties you have a wide range of style options.