Go for something casually neat yet timeless with a light blue dress shirt and brown jeans. Want to go all out on the shoe front? Introduce a pair of dark purple leather chelsea boots to the mix. It's a savvy option if you're putting together a standout getup for summer-to-fall weather. As you're getting to your 30s, you want to start dressing maturely. If that's the case, combinations like this are ideal as inspiration.