Pairing a white and blue gingham dress shirt and navy jeans will hallmark your prowess in men's fashion. Let your styling prowess really shine by rounding off your outfit with a pair of burgundy leather desert boots. Come hot summer days you're looking for an outfit to keep you comfy and stylish –– this outfit is perfect for this time. All in all, a foolproof option when it comes to style tips for gentlemen in their 30s.