A navy fair isle shawl cardigan and navy dress pants are absolute staples if you're crafting a polished wardrobe that holds to the highest men's fashion standards. If you're on the fence about how to round off, a pair of black leather derby shoes is a safe option. So as you can see here, it's an on-trend, not to mention spring-ready, ensemble to have in your transitional wardrobe. When it comes to dressing ideas for 30-something Millennial guys, this combination is ideal.