If you love relaxed casual style, why not take this pairing of a tan crew-neck sweater and navy jeans for a spin? For something more on the classy side to round off this outfit, choose a pair of black leather chelsea boots. During the colder months, when practicality is essential, it can be easy to surrender to a less-than-stylish outfit in the name of functionality. However, this outfit proves that you totally can stay toasty and remain stylish during the colder months. After 30, you want to start dressing more professionally. In this case, inspo like this comes in very handy.