A bomber jacket and a grey crew-neck sweater are amazing menswear staples that will integrate wonderfully within your daily casual repertoire. To introduce some extra definition to your outfit, introduce a pair of brown suede brogue boots to the equation. In the colder months, when functionality is above all, it can be easy to settle for a less-than-stylish outfit. However, this outfit is a good illustration that you can actually stay snug and remain stylish at the same time during the colder months. Combos like this have a sophisticated air that befit 30-year-old gents really well.