A double breasted blazer and blue check dress pants are a classy combination that every stylish man should have in his wardrobe. Complement your look with a pair of white and blue athletic shoes to make a traditional ensemble feel suddenly edgier. So if it's a baking hot summertime afternoon and you want to look dapper without exerting much effort, this outfit will do the job in seconds time. As a 30-something gentleman, you probably want to start dressing like a grown man. That's when combinations like this are a surefire option.