Go for a pared down but at the same time cool and casual choice by wearing a black long sleeve t-shirt and olive cargo pants. Why not complement this ensemble with desert boots for an air of sophistication? During the colder months, when functionality is critical, it can be easy to settle for a less-than-stylish look in the name of functionality. However, this look is a striking illustration that you totally can stay snug and remain stylish during the colder months. This getup shows that in your 30s you have a wide range of dressing options.