The sad reality is that most retailers don’t offer extended or “big ... tall sizes in shirts up to size XXL and blazers in sizes up to 48L, J.Crew offers well-made wardrobe staples like jeans ...

And, of course, blazers and jeans ... Done wrong—say, with skinny jeans and an orphaned suit jacket—the look can go very bad, very fast. But once you understand the essentials, it's easy ...