A navy double breasted blazer and cargo pants are absolute mainstays if you're picking out a classic and casual closet that matches up to the highest menswear standards. Upgrade this outfit with a pair of dark brown leather work boots. Keep this ensemble in your front hall wardrobe come warmer days, and rest assured, you'll save a lot of time racking your brain for an ensemble on more than one occasion. Wondering how to master casual dressing as you make your way through your 20s? This pairing is the perfect answer.